As you are probably learning, Evinrude came up with the FICHT as a way to keep the two-stroke alive with the new emmission requirements. Great idea and eventually developed into the ETEK that seems to be an excellent product. Unfortunately Evinrude did not have the capital to work through all the bugs and if not for Bombardier buying them out, would have completely gone under.
I have a 115 FICHT and have had some problems (check my previous posts) but for the most part, compared to newer outboards, my problems are not that far out of the ordinary. The larger FICHTS like the 150, 175 and 200 are noted for having some serious problems - my brother - in - law had to have his rebuilt and then a new ECM put in, only to have it completely run itself dead first trip out after the rebuild.
If you have one that hasn't had problems and survives a mechanic's check-over, would be probably ok. However, make sure your mechanic is a Bombardier dealer and has access to ALL the new codes and can upload all the computer fixes/patches ...