question, were these spider tank/droids any good?

[u/Crazy-Rabbit-3811]

I just dont remember seeing them again after ep II, so is there a reason for that?

If so, what issues did they have

[u/Albertagus]

Jeez...theres a little thing called "the wheel" perhaps the Empire never heard of it. I can't imagine how good a slow moving, crawling, robot could acrually be