Well I cancelled my initial order because I got impatient but I do currently have one now.
My thoughts so far are.
Generally quality and finish it looks nice overall.
The ambi mag release feels and works awesome
The primary magwell is really tight, ets mags drop free factory Glock are very tight.
The safety is a different due to the grip design (no detent or spring) uses a plastic piece inside to hold in the positions. This will take a little getting used to feels different and not as positive as the standard set up.
Lrbho has been intermittent so far but I don't blame the lower considering I'm using the taccom buffer, rifle spring and spacer in an A1 tube. It's in the 2nd/3rd stage by the time it gets to the bolt catch.