I've used serverpartdeals for 2 Seagate 16TB drives. I had 1 drive start to show signs of premature failure (unusually slow read/write speeds and read errors).

Their support is amazing. They 2nd day Air shipped me a replacement (after asking for advanced replacement) so I could rebuild my array before returning the old drive. No cost to me.

Good service gives me way more confidence in a store front than just positive product reviews. Can't recommend these guys enough.