hi KKM,
I walked and camped along the Limestone Way last summer. I suppose it depends what you're into but, as someone who likes the hills, I didn't find it very inspiring. I did it over 4 days, starting from Castleton and the first 2 days were fine. Not really challenging but enough variation and scenery to make it interesting. However the further south I got, the more bored I got. Walking down farm tracks with drystone walls too high to see over wasn't my idea of fun. If I wasn't so stubborn I'd have packed it in about half way. I did it alone though, and maybe if I'd have had some company I might have been a bit less bored.
Still, it's just my opinion . As I said, it depends what you're into but I must admit if I was planning a 50 mile or so LDP I'd try the Herriot Way.
Hope that helps and I'm sorry if it puts you off
Steve
