It works out quite good, if you are wondering to purchase it.
Here are Few things to note:
Cons:
1: IT does not record Midi Automation (knob movements in its own sequences)
2: you need to use it's computer Software at times to make changes like your drum map or other
3: No chord mode (though you can cheat)
4:Not as extensive as some other H/W sequencers (like the Origin , but you get what you pay for)
5:No undo, but you can revert to last saved state (pattern or project).
Pros (for kronos users):
1: Seems to work quite good with kronos and adds to some missing functaionality
2: 2 independent Melodic Sequencers (upto 64 steps with velocity and gate control).
3: Melodic Sequencers can Transpose (relative like kronos)
4: 16 part Drum sequencer (Create The Korg Drum Map in Software)
5: Good Random/probability function (along with swing) to add a bit of humanization if you need it.
6: Has a Control Surface mode (16 knobs,16 pads + 16 buttons) (no sysex though)
7: Upto 16 patterns for each Sequencer (3) per Project (total 16 project memory at any given time).
8: Synced nicely with Kronos (Kronas as slave)
9: Independent Realtime pattern chaining: You can program/sequence the patterns to play in your desired order like 1 1 2 2 3 3 3 4 (for each sequencer). Makes it easy to come up with a drum/bass track and then record into kronos
10: Very easy to program/operate, once you get hang it.
11: Wait mode: It can wait for the current pattern to finish and then switch to next pattern. (I enabled in software)
12: Solidly Built (plastic though)
13: Some Nice extra timing options along with forward and reverse per pattern
14: Came with all cables (patching cables too)
15: I love it.

16: Works Standalone mode.
17: Good Control over drum parameters (step velocity editing, one of my main reasons)
18: Fits nicely and snugly on my tablet/ipad stands for a inclined angle
19: https://www.arturia.com/beatstep-pro/overview
20: My Reason for buying: Quicker workflow and drum building. Crating quick melodic elements, wave sequences and drum velocity editing (I find hard to work with hats etc in kronos sequencer)