This set is awesome. Putting it together was a piece of cake if you have assemble before. Definitely you need a power tool to put it together. Honestly, the most time consuming part was putting all the washers in the screws. There is about 120 of them. Here is my tip. Put them all together in the beginning. Once you do that, if you are using a power tool, you should be done in 45 minutes. They chairs are comfortable and it looks durable.  I am a big guy, 6-1, 240 and really enjoy sitting on these. Totaly worth the money assuming it lasts the winters.