I like and use speed ez-l's too but they are made of a soft metal that bends easily if you aren't careful. Easy to get it out of whack. The Saunders fixed ones are much, much stiffer (and more expensive).
I've moved several times and with each move the easel gets more and more 'out of whack'. Leaning on it, etc..
Just something to consider. Otherwise, I have an 8x10 one that is 12? years old at least, if not older. Works fine.
I put stickytac or that poster putty hanging stuff, a little ball, underneath each corner and align the enlarger to the easel.