It's adviced not to use a acetone based prep with gel II™ which scrub fresh is, you need to use a IPA based prep solution with gel II™ Is you can't buy it as it's out of stock unfort at the moment then use IPA or gellux prep works well I've found. You also just wait till dry. (If you do use scrub fresh you'll need to then wipe again after with IPA and wait till dry then apply colour)
Also don't do thin to win this isn't shellac and if you use it like shellac it won't necessarily last as well, do slinky thicker first colour and second then topcoat as normal, wait and then wipe, some say they loose shine, if you do don't worry it comes back.
I have no problems with removal, I remove topcoat, wrap and then pop in microwave heated mitts which client love, then use orange stick to remove and then wipe firmly with acetone soaked plastic backed pad and viola off. No problems.
I think a lot of us are doing gel II™ As if shellac it's not, as said I'd advice joining the creative beauty group facebook page as very helpful and you'll find tips and tricks.
I'm wearing gel II™ as. I've removed my stiletto nails and I've no issues and love it.
Also there will be education classes from the end of January which will also give all,the info needed too