We visited the area and stayed in Tirrenia at the Grand Continental. When I researched that hotel…read moreand how to get from it, via train to Venice and bought the tickets, I didn't think about using the Pisa train station. Turns out this train station is actually a little farther out of the way from Tirrenia than Pisa and once the train leaves, the first stop is in Pisa - So, if you need to go towards Firenze do yourself a favor and use Pisa's train station instead.
As for this station, it looked decent, even though we got there at 4:30AM and there were homeless people sleeping all over inside it on the floor. It was a little scary being the only non-homeless people in there in the early morning darkness, something I probably wouldn't do again.