Wife and I spent 3 nights on Delfin III in Feb 2022 as part of an Avalon tour to Peru. We are in our 60s and cruise alot but this was our first river cruise. We had a great time and highly recommend this cruise!
Delfin holds 44 pax but there were only 20 on this cruise due to covid restrictions. We were with another US couple on Avalon tour and rest of passengers were from Peru or Argentina. Most of staff spoke good English so we never had a problem communicating even tho our Spanish was minimal. Most of passengers spoke English so we got along great with them. Everyone was very friendly and helpful.
We upgraded to a corner suite on first floor and highly recommend it. Have 6 large windows giving you view in front and side of river. Large comfortable king bed. Plenty of room and storage space to unpack.