The odesys client is limited, it doesnt have as much FIBs functionality as any other client, including BGOnline. That makes them more difficult to deal with.
Even if they are coming from a stable connection, they cant resend moves or do any of the other things computer users can do.
They are ok to play - as long as you do your checks, and have patience. If you have neither of those things, dont play them at all.