ugodno

1. pleasantly; comfortably
   Veče smo proveli vrlo ugodno. — We spent a very pleasant evening.
   U novom stanu se osećam ugodno. — I feel comfortable in the new flat.
2. (with dat. of person) it is pleasant; one feels at ease
   Nije mi ugodno da pričam o tome. — I don't feel comfortable talking about it.

In Serbia prijatno is more common in this meaning.