I think the artwork is pretty.

I didn't think it was funny, that might be because I have no experience with MMORPG, but given that I have enjoyed other MMORPG parodies, it might also be because it isn't my kind of humour, or perhaps because it hasn't had time to grow on me yet.

I went with "I will check it out from time to time". Given how many times I check to see if OotS has updated, I think it likely that I will have a look at Erfworld fairly regularly.