I grew Mitoyo last year. The plants were huge, as were the fruits if you left them unpicked. Seeds were from BC and sprouted easily and quickly using a heat mat. Fruits looks much like BC's photos of Aswad. Mitoyo has creamy, sweet flesh, never bitter even when let to grow large. Some descriptions say they're sweet enough to eat raw, which I hadn't tried.
For flavor, my three favorites were (are) Mitoyo, Kamo (seeds from Solana in Canada), and Kurume. All three are OP so seed saving is easy, too.
Kurume grows very much like Ichiban (hybrid) but I found it to be even sweeter than Ichiban. So, am not inviting Ichiban back this year, since Kurume topped them and is OP, too.
Listada di Gandia is another variety I like. Looks fancy, purple with white stippling. Not as sweet as the three above. Only other one I'm growing is Round Mauve, which looks different, but tastes much like Listada. Softball-sized round purple with a white star on the stem end.
Hope this helps.
