I've only seen bits and pieces of the older ones, so I can't speak much for whether or not it matches the old ones in style, but I was pleasantly surprised. Both with the quality of the effects, and the lighthearted approach.
It certainly didn't take itself too seriously, and had a few hilarious moments such as one character being "eaten" by a plastic garbage bin, and Billie Piper failing to realise she was talking to a very obvious plastic copy...
Even my ordinarily rather non-geeky fiancee enjoyed it and wants to watch it regularly...