Jogging strollers

Anyone have recommendations on a good jogging stroller-brands you love or to avoid? We are leaning towards a bob but not sure which model. Also any experience in buying a jogging stroller used from Craigslist, is it worth it? Or should we splurge on new? I run about 15-20miles weekly and my husband and I go on 5-7mile walks regularly as well so that would be primary use of jogger. We have a seperate light weight stroller for other use. Thanks in advance for any suggestions/advice! :)