We researched and demo'd 3 different units from Stryker and chose the EZ pro 2. After being the person that had to maintain the cots for years, I love the Strykers.
Maintenance is almost nonexistant.
Stryker has found that there were 2 pieces to our cots that were not manufacutued properly causing problems and one mechinism that needed redesign. They came out and made all the changes quickly without charge. That was a pain in the ass and expensive. Fernos design of holding things together with roll pins was poor. Ferno does appear to have a new cot on the market that is a much better design and is made better, but I have not tried it.