OK, I'll bite.
I've had a legacy and a Virtus and I like them.
It's fine out of the box. A little low powered but a tech can bring that up and the quick change spring feature gives you options. Mine won't drive a m110, I've got a 90 in at the moment and will try and 100 when it arrives next week. The hop seems fine, mine manages 0.28s just fine. Rate of fine is pretty average and the trigger is...well, it's an AEG.
I do really like the ergonomics, although I'm about to chop mine up to make a super short rattler.
Issues I've seen involved the external rail which the stocks sits on being brittle and prone to having bits snap off and crack if you put too much stress on it. It's also a real faff to reconnect the contacts after separating the upper and lower, but I'm used to rear wired AEGs and gas guns so that might just be me.
So, I like it. I'll be sending it away to get tuned once it's been shortened to a rattler (dunno where I'll send it yet).