From my colleagues' research on the matter, other plug-in ECUs like Link report similar issues unfortunately. So unfortunately for us it's still a case of modifying the stock dizzy, which is the solution we found. There is of course the option of adding a trigger kit, so it's a case of choosing your poison. Regarding the AFR, I'm not sure I understand the issue. The stock car didn't come with a Bosch wideband sensor, so of course adding it as a separate feature for the ECU will be some extra work.
On the plus side the ECU does support COPs and the maps can be switched using the boost control button in the car.
@Glanza_Muzz : Sorry to hear you've been having issues. I think it's worth determining if the start-up issues are due to the triggering or fueling/ignition. Any standalone ECU will require tuning, ESPECIALLY for cold start conditions. Fortunately we have a partnership with a remote tuner (Alex Hickson, search his name in the MX5 communities) and he gets MX5s to start like an OEM ECU. If the triggering is ok, I can't see why he wouldn't be able to achieve similar results on the Starlet as well.