I'm looking at purchasing one of these (not the Milspec) and I'd be interested in any honest feedback from current owners,ex-owners or users.I've viewed many reviews and read a lot about them.I'm not confident in building my own...yet and these look like a good option.My friend who is also looking said that issues have been addressed,not sure what but I will research further.Is this a good starting point to get into HPA?Thanks.