LEGO strikes again - these sets aren't your traditional, old school LEGOs for little kids but instead are incredibly detailed models that have LOTS of pieces and LOTS of movement/mechanical connections - the blades not only turn with the included motor but also can tilt and whatnot with the movement of the control stick in the cockpit.As such, these are definitely for older kids - pre-teen and teenagers mostly, though could go a BIT younger based on the individual child and with more parental support in the build process. It's also something that adults might enjoy building themselves, so there's no high end on the age range! The pieces have the usual high LEGO quality and of course fit together well (if you follow the very clear/detailed instructions) and ... MoreLEGO strikes again - these sets aren't your traditional, old school LEGOs for little kids but instead are incredibly detailed models that have LOTS of pieces and LOTS of movement/mechanical connections - the blades not only turn with the included motor but also can tilt and whatnot with the movement of the control stick in the cockpit.As such, these are definitely for older kids - pre-teen and teenagers mostly, though could go a BIT younger based on the individual child and with more parental support in the build process. It's also something that adults might enjoy building themselves, so there's no high end on the age range! The pieces have the usual high LEGO quality and of course fit together well (if you follow the very clear/detailed instructions) and everything works just as it should. Presuming you don't lose any of the small pieces, this set will serve you well for YEARS to come.Given the detail, quality and number of pieces, this isn't the cheapest set, but it's still good value and a good buy given what you get for your money. I can certainly recommend it to those with kiddos in the right age range - or adults looking for something fun to do themselves!

My 6 year old son and I are in love with this set.We came across a suspected misprint and called Lego. A very knowledgeable employee was on the phone with us right away and confirmed that we were correct.On page 108 (picture # 180) we built a relatively simple module correctly. However, starting with the following picture (#181) on the same page (108) and until the end of the instructions book there is a persistent misprint of how it should look/come together.There are 2 pieces involved in the confusion: #4142132 and #4142865. Unfortunately I am not able to upload photos.I hope my less than ideal description of the problem doesn't confuse or put anyone off. You may not even notice it. It's a wonderful set.

This kit is everything you would expect from a Technic Lego set. The Technic sets are recommended for ages 11 and up - and I think this is the correct age. These sets are very complex, and a younger child will not have the patience or the coordination to assemble it. That is the reason for the three stars about it being easy to assemble. To be fair, this set is not supposed to be easy - it's supposed to be a challenge. That being said, the instructions are very detailed, and the set will take many hours to build. I anticipate it taking 3-4 sessions of at least 2 hours each, as it is so complex.The box is beautiful - with pictures of the assembled helicopter on the front and several other views on the back. As usual, it has several different numbered bags of pieces, ... MoreThis kit is everything you would expect from a Technic Lego set. The Technic sets are recommended for ages 11 and up - and I think this is the correct age. These sets are very complex, and a younger child will not have the patience or the coordination to assemble it. That is the reason for the three stars about it being easy to assemble. To be fair, this set is not supposed to be easy - it's supposed to be a challenge. That being said, the instructions are very detailed, and the set will take many hours to build. I anticipate it taking 3-4 sessions of at least 2 hours each, as it is so complex.The box is beautiful - with pictures of the assembled helicopter on the front and several other views on the back. As usual, it has several different numbered bags of pieces, and the instructions tell you the order in which to open the bags. This makes assembly a little easier as you have a slightly limited number of pieces to wade through to find the right one. The book suggests putting all the same color blocks together, which is a good start, however you will also want to sort some of the smaller connectors out as there are different ones, different sized rods, etc. and it's important to get the right one. I find that using a muffin tin is helpful. I also use a cookie pan (with an edge) or a sheet pan to sort them.I am looking forward to starting this at Thanksgiving so I have the long weekend to work on it. If you have an older child (or adult like me) who enjoys Legos this will make an excellent gift. If you are new to Legos this might not be the set to start with, but in any case you get your money's worth. Legos are professional grade toys - you can't go wrong with them.