Love the space, but ...it's definitely a love-hate relationship. We had a problem on our maiden voyage in our new-to-us (three-year old at the time) Class C. On our particular RV, retracting it is not a one-person job, not easy to do, and requires some muscle power, a ladder and the correct size screwdriver. With help, we got it done and were on our way home. Had to replace one of the motors.
Hopefully it won't happen again but at least we know the drill now, so the advice is good about getting familiar with your unit (as always). It's just one more thing that can go wrong at a bad time. If I were out shopping and liked two units, I'd go with the no-slide choice.