My husband and I stayed at the Adler on our last night in Rome due to it's proximity to the train station. It was average, nothing great. We stayed in 2 other wonderful hotels in both Rome and Florence and the Adler was no comparison. Our shower stall wouldn't drain so we and to take fast showers so the water wouldn't go all over the floor.
We asked for a 5 am wake up call, and they called at 5:30...thanks a lot. Luckily, we had woken up on our own.
The room was drab, very drab colors and decorations.
The staff was okay, but not particularly helpful. When we told one of them about the problem with the shower on checkout, we were basically ignored and given the bill.
If you'd like a really wonderful place to stay in Rome, consider the Santa Maria Hotel in Trastevere. It's a real treasure....check it out on Trip Advisor. It's quaint, in a really wonderful neighborhood, and attentive and helpful staff.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC