Mine are from Old House. As a first time grower I appreciated the detailed planting instructions. So far all I can say is the tubers were firm, all had tiny sprouts when I put them in the ground and those sprouts have grown a good 3 inches since (I further buried them today).
I mainly chose Old House because they have Mrs. Van de Iver which is supposed to be cold hardy to zone 6. I plan to leave it in this winter. If it pulls through I'm getting more next year!