My Rail was great other than the weight. I put 1500 miles on it.
Unfortunately I have only had my bike a few days now. The demo was a SL1 that I rode 15 miles on trail. I purchased the SL2, and rode it 16.5 miles yesterday. For me it rode every bit as well as the SL1, and I seem to be getting about the same battery usage as the Trek w/625 battery.
I do however have the dreaded Shimano brake pad rattle with the lower spec bike.
I was originally looking at SL bikes, but I worried about range anxiety for there 400ish batteries. I'm a heavy guy at 260lbs, and I like to have around at least a 30 mile range(tour/emtb on the Bosch).
I do like the smoother Shimano power delivery over the Bosch, but I had the old system not the smart system. I hope you can find one to ride. The geometry looks pretty wild, but I like the way it feels on trails both xc and Enduro.