Doug I'll give you my 2 cents worth if can help, as far as the xxl compared to thr Revo, all I can compare, with my experiance, is the LST II compared to the Revo Platinum.. from what I understand is the XXL is the replacement of the LST II.. not positive on that one, but for this for now, I'll go with it.. we raced both the LST II and Platinum.. and I was the crew chief also.. so with my experiance both trucks, as with all the other brands out there, have thier good and bad points. the Losi had problems with the one way bearings and that little wire they used up front to tie the stearing together. the one way bearing was replaced with the Dudes single speed.. as far as the Revo goes, I hated the 3.3 engine..Never could get one to run consistent.as far as durability, both, I feel went thru the same abuse and stood up as expected.. if you can find a new Platinum, and there are many out there yet,and some actually lower than when they came out, I would go for one of them if your going towards the Revo..i