Only thing that is not working is translation history which works only on main site and network activation which is wp problem not yours. Otherwise, plugin is 100% wpmu compatible.
Tanging bagay na hindi gumagana ang pagsasalin ay kasaysayan na gumagana lamang sa pangunahing site at network activation na kung saan ay wp problema hindi sa iyo. Kung hindi, plugin ay 100% WPMU tugma.