I think this is a fair sitcom, to be honest. Very much a "bottle job", by which I mean basically one or two main sets, small amount of main characters and not much in the way of variation, basically like everything is contained in a small bottle.
It's not usually laugh out loud funny, though there are some amusing moments. It's not incredibly heartwarming but there are some understated sweet moments. The plots are inconsequential but engrossing enough as they play out, though I'm having a lot of trouble remembering even one right now so I think it's fair to label them as forgettable.
Basically, as it stands this is very much schedule filler for the BBC - charming enough but hardly unmissable TV. The main reason I watch it is to appreciate the looks and acting talent of Sarah Solemani, a striking brunette who really deserves something more substantial in terms of acting roles.
Slightly above average, but not much, hence a mere six out of ten is more than fair.