My problems have been several and very frustrating. Two are major and not been resolved(dealer has worked for 6-7 weeks or more trying to get them fixed.) As to other brands I can only relate to personal knowlege.We had a 99 Prowler and had very few problem over the years. Basicly replaced tires, converter and leaking water heater. Not bad for 10 yr old TT. We got our Sundance in 2-09 and some friends got theirs at the same time as we planned to travel together. We all thought if we got new RV' s we would not have to worry about a lot of problems. So one got a Cougar 5er and the other a SunnyBrook 5er and we got the Sundance. Neither of them have been back to the dealer for one thing. We have had to cancel 3 trips with our friends due to being at the dealers for repairs and fixes. Ours is at the dealers now still trying to resolve a leak in the bottom of the front slide. We have a 3 week trip planned starting Friday. We are going and if raining we will just put the slide in and deal with the problem when we get back. I have sent pictues to Heartland re: slide problems on the 12th of this month. Garry said he would pass them to Steve and get back with me. I have sent two follow up emails and yet to hear anything.