Yeah if I owned both AK and pro 6 I would probably use them in the same way. Pro 6 Poly, AK 4 x mono. But if the OP is only able to get one and just wants to know if AK can sound like the Pro 6 I’d say yes. I just watched this video and the AK filters can sound very very similar even in sweeps. And can definitely get all of these sounds statically for sure. The AK is half the price of the Pro 6 (if you’re in UK ask juno for ‘best price’). If 4 voices is enough as a Poly (not to mention being a super flexible mono with a very full featured sequencer, huge memory, separate outputs per voice, tons of modulation, fm etc etc) then if I were the OP and I had £2000 that I wanted to fully spend, I’d probably get an AK and a Dominion One… The only blatant benefit of the Pro 6 to me would be the interface. Lots of knobs = a little more fun to use/quicker dialing in sounds. But AK has performance mode which is pretty next level if you take the time to set it up. And TBH I don’t find the menu slow at all. Sure I’d like more immediate knobs but it isn’t a problem. The AK filters are definitely something you need to learn though. A lot of things effect how they behave. Oscillator volume, overdrive etc. I don’t see that as a bad thing though. You can set up AK so the filter acts almost exactly the same as this PRO 6 video. And a lot of other sounds too. I can get it almost bang on mimicking my ms20 filters for example. It does lush vintage, gnarly vintage, soft vintage, heavy modern, murky modern etc etc. I have no hands on experience with the pro 6 so I can’t advise for sure either way but if you want to possibly save a grand I’d recommend at least trying an Analog Keys for a week and see how you feel after that…