Well, nowadays not many coaches dont come with a slideout. There are many configurations of slideout seals from different manufacturers. I really think that you have to do your research, and make your own choices. Of course most folks will say the better the coach, the better the quality. Go out and look at different makes and models of rv's and the slide mechanisms and seals. You may find one that just clicks with you.
Now for a independent opinion all my own, i will NEVER own a rv with Schwintek slide mechanism. PERIOD. Two small electric motors that MUST be run synchronized or the slide can "rack" and get stuck. The motors are too small for the size / weight of many slides. The track mechanism is prone to galling / stripping...etc...etc... I saw the new powergear slide mechanism on a winnebago class c recently ( powergear was bought by Lippert Components inc same company that brought you schwintek) and it is not impressive either. Looks like they are trying to re-engineer the schwintek system. Luckily i have the older powergear slideechanism
