We have some money left over from an accessibility grant and were thinking of investing in a power lift stand to help accommodate folks who might have trouble lifting their bikes.  Does anyone have any experience good/bad/otherwise with the various options.  We'd like dual-head for the sake of space.   

There's the Park Tools options of course, but I was also looking at the Unior stands or even portable pneumatic stands. 

We had some concerns regarding whether they would be good for 'general use' (e.g. would shop users break them), what maintenance is needed and whether they would be moveable in the case of a special event in the shop. I'd love to hear any feedback.

Alysia