Thanks for the reply. I've actually been looking at renting in Waltham when my current lease ends (as well as a few other places I've been looking - Quincy, Malden, Somerville). A while back I was thinking of buying, but prices are really damn expensive right now.
I lived in Quincy not far from the north Quincy redline stop. Aside from the typical delays it was pretty affordable and there is grocery and shopping in walking distance for the most part. Waltham has gotten a bit expensive the past few years.