I've only just got to the start of the latest seventh series - the pedalo episode. Surprised not everyone warmed to it, I thought it was pretty high quality and enjoyed the extra element it leaned on.
I think series 6 was a bit rocky in quality, with some misses, but reassured that the seventh is off to a good start and hopefully it continues - even if they're not their best ever episodes, they're usually well made and give you something to think about and enjoy.