I lucked into some returned sets cheap--don't know why they were open box but they have all been so great that I've bought other tools on the platform. The 1/4" impact wrench has been the most pleasant surprise. I can do all four wheels off and on the El Camino, and quite a bit of fastening, on one battery no problem. I also have the drill, sawzall, circular saw, jigsaw, orbital buffer, trimmer, and a couple of flashlights. The only disappointment was the 18 v leaf blower. It lacked any useful power. Local HD didn't have any larger Ryobi tools so I went with the Dewalt 40v blower. The Ryobi Lithium+ batteries charge quickly and last well. Almost two years on my 3 batteries in rotation and they seem not to have lost much capacity if any. I used the sawzall to cut a hole out of the top of a propane tank--the typical size tank for your grill--then cut the top quarter off (making a small forge). Cut through a couple 1/8" plates, some 2" fence post pipe, all on one battery. I've been very happy with the system so far.
Oh--the trimmer line refills are expensive, so it's better to roll your own. It also lacks the umph to edge our snaky st Augustine grass very well. I was hoping Dewalt would have a version for their larger battery but I haven't seen it yet. For regular trimming needs it is great.