Are all "Slide Outs" created equally? What to look for

We've had three different rv's with slide outs and none have leaked (water, air, or anything else). Yes there are different types of slide outs that include hydraulic, electric, and I've even seen a manual crank out. And, as mentioned above, I don't think there are many rv's that do NOT come with a slide out so I'm pretty sure you're gonna have one whether you want one or not. I'd say odds are about 50/50 that at some time or another, you will have a problem with one...nature of the beast.

Ron