When slide outs first came out, they had their issues. But slide outs for the last 10-15 years are decent. It does not mean that all slide outs are created equal. There are good reliable ones, and the "not so much" kind, especially entry level rigs with a lot of years behind them. If buying a 10-15 year old motor home, you will want to scrutinize the slide out. If buying a new rig and plan to keep it 10-15 years, the odds are, you will do fine with a slide out.
10 years ago we had special ordered our motor home, specifically NOT to have a slide out. We plan to keep our rig until we can't drive any longer which could be a 35 year period of ownership. So long term reliability is one of a few primary reasons for our decision. We also don't value the extra floor space like other people do. Instead we lean heavily toward these no-slide benefits.
- 400 to 600 pounds lighter (per slide out)
- $4000 cheaper (per slide out)
- a more structurally sound house
- no hot/cold air and water infiltration potential
- no bugs, dirt, and water coming in for the ride
- an open interior all the time
- no worries about failure-to-close "properly" which I heard can happen
- no noises or other such rattles when driving
- no interference with the adjustment of the driver seat
- we opted for a more spacious booth dinette instead of a couch shoe-horned into the slide out
- The no slide dinette provided us with much more storage from the bench seats, and also from the taller, deeper, & longer overhead cabinets
CLICK HERE to see the interior of our no-slide rig which measures 23'-8" end-to-end. Over height is under 10 feet including the a/c unit. We have a lot of motor home in a little space, and we like it. Our rig fits in our garage which is the biggest of all factors.