[gentoo-user] recommendation sought for external disk

My home desktop has had a seagate external 750GB drive ST3750640cbrk for
a number of years and the disk is starting to fail.  The system gets
only modest usage.  It is powered on about 1/2 the time and the disk
often goes significant periods without activity so it spins down.

I was considering what seagate calls an "expansion hard drive".  They
are USB 3, but I will be using only USB 2.  The desktop is gentoo-only
and I don't need any backup software from seagate.

The models are STBVx000100 for x=1,2,3,4 TB.

I understand the price capacity trade-off, but wonder if anyone has any
experience with these drives.

Thanks in advance,
allan