I’ve used strain supermarket once before I ordered seeds from a company called flavour gang all 50 seeds arrived and I’ve planted 25 of them with 100% germination rate. Although it could of been my growing skills as I’ve only grown 3 times but the quality of the bud was ok nothing spectacular so if you can find a repeatable seed bank on there I.e Barney’s farm or something like that then it definitely would be fine but then again finding good strain really comes down to the seed I think. Hopefully this helped