Now, I know Kettering might not be the ultimate destination for a weekend away, or your annual summer holiday, but should you have to be in Kettering on business maybe, you could do worse than stay at the Kettering Park Hotel & Spa.
The staff are always friendly, the food's pretty good, the rooms are very acceptable. The location is a bit dodgy, being right next to the A14, but I have stayed here 4 times now and it's never been noisy enough to bother me.
Not sure about the prices normally since I have only stayed her for training courses, and e get "all-in" rates agreed by the training provider, but they do a roaring trade in conferences - with many big names here (this week Honda and Deloitte)
