This appartments greatest asset is most definitely the location. You are only a five minute walk away from the main train station (Florence S.M.N.) and some of the most populair sightseeing spots including the Duomo. In our four day stay we didn't need any public transportation while exploring the entire city. The appartment itself has everything you need, enough beds, three (!!!) bathrooms and a kitchen. The only gripe that we encountered with this appartment was that the showers weren't working properly, meaning that it was very hard to control the temperature which led to some cold showers (sometimes with a little hot water).
To conclude I would definitely reccommend this appartment. It has everything one could need in terms of facilities and the location is probably one of the best you could possibly encounter in Florence.