Check-in should be personalized, quick, genuinely friendly, and thorough. I like the trend of roving staffers checking guests in swiftly via an iPad, as at Nobu Hotel Caesars Palace in Vegas.
A guest's first contact with the hotel is the valet, doorman, and bellman. These staffers must communicate welcome, in words, smiles, and body language. They should be happy to serve guests, and not angling for a tip…or, as in some boutique hotels, silently critiquing you, your clothes, your luggage, your car.
As far as bellboys, luggage should be delivered to your room within 10 minutes. Period.