We have a 2018 Eagle HT 29.5 FBDS, I have had 2 water leaks in the plumbing. One on the kitchen sink fixture because the fitting was only hand tight. I tightened it and it's fixed. The other was on the water heater. It was tight but the fitting was installed with the seal cocked. I straightened the seal and re-tightened it and really had to, what I consider, over tighten the fitting but it is not leaked again. Neither of these leaks happened for the first few camping trips. We have camped a total of about 50 nights this summer and towed approximately 2500 miles. Have about 10 more nights scheduled. I had an Eagle Super Lite (see in my signature) for 6 years and did not have any issues. That's why I bought the new Eagle HT. Good luck and just get what you like and go with the flow. You may have problems with any RV you buy as you can see if you check the other brand forums.
2018 Jayco Eagle HT 29.5 FBDS
2010 Jayco Eagle Super Lite 30.5 DBSA (Sold 2018)
1998 HitchHiker II 31 RLBG (Sold 2012)
2002 Ford F350 Crew Cab, DW, (Mint)