I've recently bought this as I've read so many positive reviews and had a few people personally recommend it. Unfortunately, it's proving to be utterly garbage! The file they provide for my particular printer (Da vinci Jr) is appaling. I've now had a tech guy tell me that actually, they've had to guess at the best settings, because xyz won't release them...
Best idea is to find a forum for your printer. Someone on there is bound to have it. See what they think.