I've got the Rutlands ones. I wouldn't buy them again.
Cheap, thin steel, poor clamping arrangements, poor stability and height adjustment The legs don't open to a positive stop - they hinge bends and the whole thing becomes springy. To top it off, a couple of mine aren't welded up square, either twsted so the rollers aren't square to the "feet", or tilted WRT the shafts.
The actual rollers are thin, chrome-plated mild steel with plastic mouldings pushed into the ends that take screwed-in pegs that are the "bearings". I don't know how long the chrome will last in my damp garage/workshop.
I'm considering making replacement bottom halves of the stands in wood (just keeping the rollers and their "T" frames).
They need to height-adjust well, as using my over+under p/t, the height off the floor through the thicknesser varies with the stock being thicknessed.
I should have learned by now: buy cheap, buy twice.
E.
[edit] PS: I've just added castors to my P/T, and my bandsaw came from a tall person and is on a tall stand with a lifted table (for DX underneath). I had to put lengths of 2x4 under the feet (held on with 22mm pipe clips) to get enough height to reach the bandsaw table, and will probably have problems with the p/t now it's higher up. They also wobble horribly on my roughly-screeded garage floor, and were a pain last year when I used them in a bedroom with a smooth-but-saggy floor - straight "feet" are a daft idea. [/]
