Meĥ

Check out http://lingvo.org/irvdel/eoxx.html for help translating esperanto to english

I am very impressed with this. It does a decent job with my style of using a lot of word-compounding, and it gets heavily affixed words like "malfeliĉiĝita" and "malamego". It even comes up with decent translations of the indefinite preposition "je". But it fails consistantly with compound tenses, and sentences where there is actually no subject, but the artificial subject "it" is used in English.

It also makes some mistakes with the accusative (-n) in a certain dative sense.