I've not heard too many good things about it, but really, adhesive companies are always making improvements and if they want to hit the professional market they really need to be listening to the feedback about their adhesives from the guys that are using them, you.
If I was making palace adhesives, i'd have heard the bad comments some years ago as the comments existed then too, so I would hope that by now I would have secured a decent mix and improved on the bad stuff.
Not used them myself at all though, i'd trial them on friends and family jobs on a comfortable no-come-backs "mate-rate"
