Looking for some advice here guys.

I run an mg ZS with 1.8t transplant , it currently uses an mbe992 ecu to control the motor but I want to upgrade to something a little better.
Been offered an emerald k6 ecu for a good price and wondered if anyone has used one of these or has any horror stories??
Tbh I don't know what to choose dta / omex / emerald as they all seem to offer the same.

One of the main reason I want to change is the mbe does not support on fly mapping and I want to setup a boost by gear system .

Thx for any input.