Yup, do the research, but the level of control the Solaris gives you appears to be far superior to any other ECU on the market at the moment for a very competitive price. MOTEC is great but very expensive if you unlock all the bells and whistles. HKS Fcon V-Pro isn't bad, but isn't a complete replacement ECU. It's very good if you can get someone to map it but few people map them, and it's not cheap to map. Foodfreak has one with good results.
Speak to RyanG our resident mapping guru. He's mapped most ECU's available (from what I've read) and he recommends the Solaris.