I had the Hertz Donut mk2, foolishly let go of it when I went all-in for the ER-301, wound up getting an HD mk3 and just didn’t enjoy it as much, picked up a mk2 and had them side by side for a while, and sold the mk3.
The preset system has no appeal to me. And I was annoyed that it didn’t even remember my preferred defaults on startup, unless I used the preset system and explicitly loaded a preset (and then stayed in preset mode… ugh)
I preferred mk2’s architecture, which was much more similar to the Buchla 259. It felt like using an analog module, “patch programmable” to some extent. I honestly didn’t realize how important that was to me until after I had sold it.
The mk3’s third operator could be useful, but the unison mode seemed a bit weaksauce next to the E352’s cloud mode (or the Shapeshifter’s unison). And when I had them side by side, I realized I preferred the mk2’s waveshaper over the mk3’s, and the intrinsic grunginess without having to devote a third operator to modulation to imitate that grunginess. The mk3 gave up on saw and pulse outputs, separate sync inputs for both oscillators, and a dedicated XOR output independent of the secondary oscillator output.
(I did wind up selling my HD mk2 after getting a Shapeshifter. I think Shapeshifter is pretty much the perfect digital complex oscillator for my needs. It’s not quite as one-knob-per-function as the HD mk2 of course, but it’s still pretty friendly to use overall.)
I have a Kermit, and love its “dusty” sound, its somewhat wonky sync/PLL mode, and its simplicity. The newer Kermit, despite having more features, really doesn’t appeal to me after my experience with the HD mk3.
I never had a Piston Honda, but based on the sound I think I would only be interested in a mk1 because of its really raw character.
Bionic Lester mk3… when it was announced, I was deeply disappointed it went digital instead of being a weird-ass switched-capacitor filter. I used to have a Synchrodyne and once in a while, I miss it. But I can’t argue with the sounds, and that comb filter is badass. I would probably enjoy BL mk3 it if I had one, but I have enough filters.
I have a Zorlon Cannon mk2 and like it quite a bit, for gate patterns and CV patterns and noise. I understand there won’t be a mk3.
I used to have a Tyme Sefari mk2 & A Sound of Thunder. I loved it for its overall concept and patch programmability. I just wanted a higher max sample rate, so I could go just slightly lo-fi most of the time and crank it down at other times.