The learning curve with the pretreat will be the hardest thing to get right. We did buy the Viper XPT-6000, which has all digital controls, so repeatability isn't an issue, it's getting it right the first time that is tricky. Different brands need different amounts of pretreat, and sometimes different colors within a brand. Also ringspun prints better, less pretreat and less ink than a standard cotton tee.
If we do some cool prints today I will post some up.