It’s nice, but I’d always pick the Frap Tools Fumana over it. I’ve had both in my rack for a while and it was an incredibly clear decision for me. Basically, the Bark can’t do anything that the Fumana can’t, but the Fumana can do a ton that the Bark can’t. Specifically the spectral analysis is incredibly useful. The Fumana has two sets of 16 bandpass filters - one set that filters the main input sound and one set that is only there for analysis (and can have a different input!). The output from the analysis filterbank is normaled to the VCAs controlling the filters of the main filter bank and thus allows for spectral transfer from one signal to another. You’d need two Bark Processors for this. It’s a very powerful tool - I didn’t originally had it on my radar as much, but it is one of the main ways I use it nowadays.
Of course, the spacing of the bands is slightly different between the two, but I didn’t find that to be a very relevant factor in the general kind of tone-sculpting that I did with these (ymmv) - the basic sound was relatively similar to my ears, and neither sounded “better”.
That said, they both sound great and if you don’t care for the spectral transfer features of the Fumana as much and have a good offer on a used Bark, you aren’t going wrong with the Bark Processor at all. It’s a really nice module in itself. I just wanted to point out that there’s an alternative worth considering.