My Dad's were bitter last year. I think he planted the burpless. Usually does.
I planted the sugar crisp snack size last year, and he loved those. I made the mistake of not planting them this year. I was afraid of the sugar content for him, then he told me theywere ok, and I couldn't find the seeds.
I planted the Spacemaster, Burpees. I haven't tried them, been giving them away. LOL
But, Dad made some in vinegar for the picnic, and they were good. He said they were good, didn't say they were bitter.
I planted some others, too, MarketMore? but, haven't gotten any yet. And some other Burpees.