Can anyone recommend an economically priced hotel in Florence with good sized showers?
You'll probably have to use one of the big chain hotels (Sheraton, Hyatt, etc.) to get a decent sized shower, which might not fit your "economically priced" criteria. Most of the budget places are fitted into older buildings, which only have space for the typical small shower.
Good luck!
You could check the European budget hotel chains, checking the photos to identify modern buildings. That might be your best bet. I believe Ibis has properties around Florence, and while I have not stayed at their properties in Italy, they typically are modern buildings with modern bathrooms. The downside is that they are very far from the attractions. I think there's an Ibis at the airport and one, I believe, in Prato. You would need to check bus schedules, but I would guess the one in Prato might be have easier access to central Florence than the one at the airport.
You might give us a hint of your definition of a good sized shower. The idea of a big shower and economical hotel do not go together well. In the past most of the economical priced hotel would have been a nice room with a bath/shower down the hall. Most of those are gone because the bathroom has been shoehorned into the room or a little closet. That is just the way it is. If you need a large shower then look for 4 and 5 star hotels but they are not cheap.
Check the photos at booking.com, or look for hotels with bathtubs (they usually also have a hand-held shower wand).
Yep, a lot of Italian hotels we've stayed in (not on the posh end) had tubs with either hand-held or wall-mounted nozzles.
In addition to what the others have said, the room/bathroom layout of each room in a hotel in an older building is likely to be different so what you see in pictures on the hotel websites or Trip Advisor may not be what your room looks like. In just looking at the pictures on the Hotel Sonya (Rome) website, none are pictures of the particularly small single room and rather interesting bathroom arrangement I had there!
Having said that, I think I had a fairly decent sized shower at the Hotel California in Florence. I don't know if is what you would call decent sized, but it was big enough that I could bend down to pick something up off the floor without having to open the shower door. But again, I don't see my particular room listed as a picture on the booking.com website. I was on a Rick Steves tour when I stayed there but I did not look at any other tour members' rooms/bathrooms so have no idea what others looked like.
I should reveal that if it's going to be more than a single night anywhere in the U.S. or abroad I prefer apartments. However, if you stay in an apartment the shower will almost certainly be a reasonable size. And you most likely will get a bidet and a tub into the bargain --- not to mention a coffee maker, a washing machine, and a sofa. What you won't get is a front desk, luggage storage or drop in check in.
I think we've had a bidet all but one Italian hotel we've ever stayed in, and it certainly wouldn't be a make-or-break factor. I've also rented apartments abroad and in the U.S. the but not for less than a 3-4 night stay. Not all of them have bathtubs or washing machines but we've been fine going to laundromats down the street. Cleaning fees have to be factored into the cost so apartments are often more economical for longer versus shorter stays.
For some travelers, it's also how much 24/7 support they're comfortable with?
Check out Hotel Caravaggio. I don't know if it's a budget hotel, but as I recall our bathroom had a stall shower and it was not too small. In fact, I do remember thinking that the bathroom itself was a good size. Look it up on TripAdvisor--there are lots of pictures of the bathrooms at that hotel. I also remember they had a nice breakfast with lots of choices.
We stayed at Hotel Pitti Palace al Ponte Vecchio, which is located right at the end of the Ponte Vecchio bridge. Our room and bathroom were nice sized. The shower was a regular-size bathtub with the half panel of glass covering the front portion of the bathtub to contain water if you take a shower. If I remember correctly, the glass portion can swing outwards if you're not using it.
The breakfast area has a nice view overlooking the river & skyline of the dome, etc.