Hi,
Just bought this setup from diveinn.com (NOT divein.co.uk as some people get them mixed up). Ordered it one Saturday night and received it by Wednesday (from Spain to California). Mine came with the primary regulator already attached to the first stage. The octopus was loose, along with a loose octopus hose not attached to the first stage. So be prepared to bolt it together! This might sound slack on diveinn's (or Apeks') behalf, but it gives you the flexibility to configure your regulator set how you like. Diveinn provide warranty. Servicing is through the LDS of your choice.
If you're worried about not getting service on your regulators because you bought them off the web, ask yourself what would happen if you bought them from a store and then moved away from the area - would your new LDS refuse service because you didn't buy it from them! I don't think so. There is nothing on the regulators physically to identify it as an online purchase.
Might be tactful though not to mention it to the guy behind the counter when you get servicing about how much money you saved by not buying from him - saw someone post a message on here about how their local store got snotty at them when he pointed out how expensive they were compared to the purchase he made off the web - well duh!
my jar of pennies worth,
Ben