On multiple occasions the tool seems to have erased my tags entirely and replaced them with tags I never added at all (one recent example seen here, which was easily fixed as browser history had the proper tags I had typed before the uploader just throttled them), the site in itself randomly will bizarrely reject direct urls for no reason which is fixed by directly uploading with the traditional e621 uploader, and the site has gone down quite often for several hours on occassion.
Wanted to make sure this wasn't some bizarre set of issues on my end and perhaps see if others were having similar issues.
Updated