We have one from the ALSA loan closet, although my PALS doesn't need it quite yet. He did use it briefly after getting his PEG tube placed and it worked very well. Ours is narrow and fits right through the doors with no problem. It charges well and the joystick responds quickly.
Kaija (msde302) has one listed for sale under the "Used ALS Equipment For Sale" forum. You can read what she says about it or send her a message asking her about how she liked it.