I’ll chime in, as I do have the M-Audio Expression pedal that appears to be the one in the photo. Had it for several years, no issues. Feels decently sturdy despite being all plastic, and the treadle hasn’t gotten unduly ‘floppy’ with use (not sure if there’s an easy way to tighten it back up if that were the case…)
The range pot, and polarity switch on the bottom, are also handy, in case you run across a manufacturer with a contrary streak (looking at you, Yamaha!)
Roland charge over twice as much for theirs, and it’s every bit as plastic (I picked up a used one for a good price, and it’s not any beefier than the M-Audio, and no polarity switch!) I recommend the M-Audio.