I would agree with others that you're going to be borderline with the Jayco as far as maximum payload. The Connect not so much so but still pretty heavy when fully loaded with camping stuff and passengers.
As far as quality is concerned I've owned a KZ Spree Escape for six years. Other than a couple of minor issues (shower drain disconnected while traveling, electrical short in running lights, one stereo speaker that stopped working, all fixed under warranty). We've put 7,000 miles and 160 nights of mostly local camping and a few out of state trips to Florida, Virginia and Pennsylvania, and the trailer has held up nicely. I pulled into a campsite last month and the guy next to me asked if it was new.
Actually we are in the process of buying a Jayco TT (wife wants bigger bathroom and walk around queen bed) and will be doing the pre-purchase inspection over the weekend. Of course if you go on the Jayco owners forum you'll read about numerous problems and lack of customer support. I take all of that with a grain of salt knowing that people tend to seek out forums and advise only when they are having a problem. That said you need to go into a purchase with eyes wide open and with the mindset that none of the manufacturers get it perfect when putting together something as complex as an RV. There are going to be issues. What you want to do is minimize the number of surprises by doing a thorough inspection before buying. The other major issue is finding a dealer (ideally on that is local) that will provide support if/when you need it. Sometimes that's easier said than done.