just to chime in on my experience with Katsu gear, as everything I've grown in my two runs to date has been from him
Sour Bubba - popped 5/6 of these fem seeds with three in the first run and two in the second run. Had one major, major winner among the first three that I think was pretty Sour Diesel leaning - lots of gas and citrus notes. Super balanced hybrid high. Some of the best weed I've smoked. Other two in that run were very similar phenos, but wouldn't say I had a good read on their quality since those were run outdoors unlike the first and I ran into some moisture issues at the very end. I think these had a big more Bubba in them. Not quite as distinct. For the two seeds that I popped for my next run, one was very squat and kush in structure but still had the SD nose of my first round winner. Second branched a bit more and got EXTREMELY purple in the final month. Unfortunately both of these were affected by a light leak I only discovered very late in flower and they both revegged a bit and weren't really smokeable. I blame this on myself, not Katsu.
Dracarys - got three of these fems as a freebie from DC Seed Exchange and popped all three in my first run. One was an absolute home run, I think leaning more towards the Bubba side. Strong purpling at the end, good yielder, amazing coffee and chocolate earthiness to the smoke, warm and fuzzy and relaxing indica high. The other indoor plant wasn't quite as distinct and I later realized it was affected by the same light leak issue I mentioned before (red LED from a power strip) - didn't reveg but took a loooooooooooooong time to finish and hermed a bit at the very end. The third seed was outdoors and was a monster of a plant with huge yields. I think this one was more GG#4 dominant with big glue and gas notes to the smoke, pretty balanced high. I would gladly run two of those three plants again. Great cross as many have said.
Old School Dank (The White x Romulan) - popped two of these so far. Both plants were very similar in structure - stretchy and branchy compared to to the Bubba crosses. Not huge yields due to some issues with my grow and wide internodal spacing (probably also affected by using 3000K lights all the way through) but super vigorous and healthy plants, very easy to grow. One of them has super smooth and piney smoke that I absolutely love. The other is markedly more potent and is funky and rotten and dank as all hell. Both heavy indica smokes. Not familiar enough with the parent strains to place either pheno on the spectrum. Not sure if I'll run these again since I've now got a pile of Bodhi packs calling my name and am better set up to accommodate regs and cloning keepers.
I've also got a freebie pack of Chocolate Lava Cakes that I'll probably pop at some point since this seems like a decent bet for finding some more of that Dracarys magic.