Welder24 - we just got (in June) a 2015 Eagle Premier (see sig).
Been very happy with it so far, no issue to report yet, though we've only been out in it 3 or 4 times so far.
We really like the upgrades they made from the 2014 model year.
We've found a few minor defects in furniture that we're still waiting for replacements, but other then that - nothing. This is our 1st Jayco & 1st 5th wheel and so far we're very happy with it. Seems like a good quality product. Our previous trailers were Sunlines, which we felt were very high quality trailers and the Jayco's quality seems to compare with the Sunline's.
IMO you made a good choice and you'll be happier with the Eagle Premier then you would have been with either a Cardinal or a Montana.
Only suggestion I can make is take your time doing the PDI. Don't let the dealership rush you. Our dealership let us come up the day before our PDI and we spent ~3hrs going over the trailer, then we spent ~3hrs during the PDI and there were still things we missed and found after we got home with the trailer.
Good luck with your new 351rsts Premier, I'm sure you'll get many years of enjoyment out of it.
2015 Jayco Eagle Premier 361REQS
2014 GMC Sierra 3500HD 4x4 CC D/A