I started watching this, and ended up watching all the episodes back to back, I enjoyed it so much. Yes, it is a bit silly, but it is still very entertaining if you give it a chance. I've seen some people compare it to other things, but to me it is closest to "Mork and Mindy," with humorous violence thrown in. I wish it had gone on for more episodes, but at least this series has a very definite ending, instead of just leaving you hanging. Either it was planned from the start to only have this many episodes, or the writers did a very clever job of wrapping it up once they realized there would not be another season. Either way, I found the ending very satisfactory.
If you like Jonathan Pryce, and British humor, give it a try.