I have had many mono synths, and I had about 6 of them already when I got the bass station 2, but this one still blew me away beyond expectations.
The sound of the BS2 is great, and features like drive and distortion allow for those dirty gnarly bass roars, while the clean sound can give you very lush, milky bass.
The set up of the synths is not groundbreaking with its 2 oscillators, Filter and ADSR, but it uses its tool very well.
The synht is built out of solid plastic, but this does not feel like low quality or fragile build. The knobs feel good, and the larger cut off is a very nice touch, allowing for better and finer manipulation during live play.
The keyboard is really nice, and allow for velocity play. I even start using it to control other synths via my DAW.
The added features of afx mode and an array of under the hood possilibites makes this a very powerful instrument, and in my opinion the best for its value currently available.