Well, I'm somewhat minded to agree with you, but they are fast enough, cheap enough and don't get bored of tedious work, which makes them passable at many things. Maybe.

I feel caught between two worlds, I know people both very 'for' and very 'against'. The business is very keen for people to use them to go faster.

For non-trivial changes, output so far does not meet my quality standard and I tend to spend a lot of time cleaning up after them, probably more than I would have spent doing the work myself. This being much more boring, I hasten to add.

Their comments suck so I feel like I have to go in and rewrite them all.

Maybe I should just let go of the quality standard and accept that in exchange for steaming ahead at full speed, but I'm reluctant (and not just for me, there are also coworkers who I feel like I would be letting down).