This hotel is a good choice if you are driving a car, which we were not. We were in Zaragoza to see the eclipse and should have stayed in the Old Town. Instead we were 30 minutes away and next to a truck depot. There was a bus stop very close to the hotel but the bus ran every 30-40 minutes and the route it took was not as GPS showed, so getting to the Old Town was tricky and then finding the right place to take the bus back even more difficult. Therefore we ended up taking taxis, which the hotel staff easily arranged, or you could flag one down in the Old Town, but it added 20-30€ each time we used it. Uber is not as available as in other big cities, but all taxis use a meter so we never had to negotiate prices.
The hotel breakfast was good. Eggs, toast, Spanish tortilla, fruit, pastries and pretty good coffee. We did not have it included in the room cost so it was an additional 12€ per person each day. The lunch and dinner options were minimal. Again without a car you have a good 15-minute walk to a couple of fast food and an Italian restaurants. Not too sure as we always ate in town.
The bed was very comfortable but be sure to ask for a single bed when making the reservation as twin beds seem to be a thing in Europe. The showers were a welcome respite after a day of walking in 100+ degrees. There are no grab bars to get in and out of the tub so be careful.
All in all, Sercotel is a good cheaper choice if you are driving, but not so good if you rely on public transit.