I second Seele's recommendation. I've used Paterson tanks and reels (as well as AP ones) in addition to stainless steel tanks and reels before I switched to Jobo.
I feel that the Jobo reels have all the ease of loading Paterson reels, without any of the jamming. The tank itself is well made, and it doesn't leak, unlike my stainless steel ones. The locking mechanism is much easier to use in a darkbag and you can't cross-thread the top.
Well worth the additional cost. Make sure you pick up an additional reel if you do get a #1520, as that only comes with one reel by default.