Room service tips are NOT included in auto tipping. The waitstaff who deliver room service are the ones in training to work in the dining rooms and lido decks. We always tip them a few dollars.
No we have not noticed service lacking since the auto tips began. I know the percentage of employees who got "stiffed" for a tip has gone down. We always talk to our cabin attendant every day, asking about their day, family and let them know we appreciate everything.
Teresa and Larry
#36-Carnival Splendor 9/16/12
7 night Mexican Riviera
#37-Allure of the Seas 11/11/12
7 night Eastern Caribbean
#38-Celebrity Solstice 4/8/13
17 night Tahiti -- Sydney-Honolulu
40th Anniversary Celebration
270 days at see; soon to be 302