I previously bought a pair of Vionic Farra T-Strap Sandals in 7.5 from Shoes.com, so wasn't sure about the sizing for this boot. I bought an 8M but they were a touch too narrow so I exchanged for an 8.5M, which fit just fine.
I have flat feet so was looking for something with arch support. These boots don't have amazing arch support, but they are pretty comfortable to wear to work daily. I don't do a ton of walking at work, though (basically to and from the entry to my desk and around the hallways).
These boots are plain but timeless in design -- I like the gold accent of the zipper and pull. The heel isn't very tall. I'd recommend if you're looking for something comfortable and basic.