Stayed in a candlewood in Brentwood, MA for about 3 straight months in 2002.
It is a simple extended stay chain, upscale compared to the cheapy ones (Extended StayAmerica and Homestead), and downscale compared to the expensive ones (Homewood, StayBridge etc.).
They have large rooms, large working desks, full kitchen, free laundry, free movie and book rentals and more. The front desk is closed during the night hours although an attendant is alway on call on the hotel premises.
Overall, for the price, they are quite a good extended stay chain.