I've used both in the past but mostly have been using SYR because it's a little cheaper and has some really nice tools to make sure you are doing things correctly. If you need to modify a label, it's really easy with SYR customer service. I had a customer decide at the last minute to change hubs after I had already bought the label and it was less than 5 mins to fix. The only complaint I can think of is if you go through them for shipping supplies, order in advance while they have what you need because sometimes they do run out of stock for a bit.