Probably 75% of us have very few problems while on the road. The key is picking a brand with a reputable reputation, and good maintenance. Yea, every RV requires maintenance at least a few times a year. My RV is 10 years old and the number of repairs on the road has been zero. I take care of problems at home when I can. Last month for the first time I had to buy new tires while on the road for my truck. Unless you are mechanically inclined and handy repairs can get very expensive. Again,I do all my own work. The RV lifestyle is not cheap. Park fees alone can cost you 1500 a month or more if your traveling. Monthly rates can range from 300 to a thousand a month. Add fuel, electricity and propane,an apartment or home can be cheaper.
