I have had 2 Prevost with both having 2 slides and have never had a problem or any maintenance.I would only buy Prevost slides because I feel that they will always be there for service and they designed the slide to be a part of the shell.If you are looking for a newer coach it is hard to find one that does not have slides,the majority of XLs will be non slide coaches.I attend events for 5-7 days and slides are great for us.