Maybe you'll be lucky like me, we've had ours for 6 months and churned out 8 sets so far. It's definitely easier, but it seemed like channel letter orders dropped off the instant we had it set up. We got the cheapest accubend, it's fine, but if I had to do it again I'd go for either an old model 26 or SDS.
How does the SDS handle artwork? Do you have to buy and use a version of Enroute just to make files. That's the most annoying part to me, as my fab guy has just enough computer skills to pick the next return to run, nothing more, so artwork modifications are all on me.