Highly recommend it
I bought this unit with Mr. Aaron Tremain (highly recommend him too).
my favorite ITB compressor is The Glue, and I still think that.
On the other hand, the TK audio BC501 "glue effect" and the punch from TK audio bc501 is really nice and an upgrade from the glue itb compressor.
Have been using in stereo sources compressing the dry + reverb / delay and I'm really amazed. Stereo buses are so incredible and gives a "polish" for even bad sounding audio.
Is it a night and day difference? I don't think so, but if u haven't had the chance to compare plugins against hardware, the TK audio BC 501 is a very incredible start. Made me wish I bought two units.
build quality is nice, but it would be nice to have it covered in metal like RND 500 series. Packaging was too big.
the other downside is that their competitor's has a "plugin recallable" software, and that is certainly very nice. However, I don't like to "jump in" new technologies soon, so I opted for BC501.
didn't regret it and I'm very pleased.