I've grown Double Grape, AVTriangle, and Sour Livers. All nice plants. At least in my case they really didn't finish much faster than regs or feminized. Your lights are on 18-20hrs/day during the entire grow duration and the electric bill reflects this over a grow cycle. They are really easy to stunt too if you start messing with them or get nutes/ph off for a couple of waterings.
I veg everything(reg/fems) now under T5 until they are ready to go into the tent under the big lights 12/12. Noticeable difference on the elec$$. I still do a few autos out in my backyard every year. They hide pretty well in the tomato garden. I'm at 44N have trouble getting regs to finish up here.
I always have a banger tomato garden. I'll have friends over and they are picking some to take home and run into one of the autos. I never warn them. Some never even notice and others just start laughing until they realize they've been brushing up against them and reek driving home lol.