Here are several Colombo hotels that travelers commonly praise for good customer service — short note about each and a recent review/source you can check:

• Shangri‑La, Colombo — Large international 5‑star with frequent mentions of attentive, professional staff (concierge, breakfast and front‑desk singled out). (hotels.com)

• Jetwing Colombo Seven — Stylish boutique/high‑rise in Cinnamon Gardens; reviewers often highlight warm, helpful staff and speedy responses to requests. (thetimes.co.uk)

• The Kingsbury — Upscale seafront hotel; many guests praise the staff for being friendly and helpful (particularly restaurant and front‑desk teams). (expedia.com)

• Cinnamon Lakeside (and Cinnamon Grand) — Both Cinnamon properties regularly receive guest comments about courteous, service‑oriented teams (especially in food & beverage and executive lounge). (tripadvisor.com)

• Taj Samudra — Longstanding city hotel with numerous reports of professional, attentive restaurant and front‑of‑house staff (some mixed feedback, but many positive service mentions). (booking.com)

• Galle Face Hotel — Historic seafront property; widely known for personalized, friendly service from long‑standing staff members (reviews show both consistently great service and occasional service hiccups). (tripadvisor.co.nz)

• Maniumpathy (boutique) — Small heritage boutique in Cinnamon Gardens that markets a very personalized/attentive guest experience; highly rated by visitors who value bespoke service. (maniumpathy.com)

Quick notes:

• “Good service” can vary by department and by date of stay — recent guest reviews are the best guide. I included sources above so you can scan current reviews and recent traveler feedback.
• If you want recommendations by neighborhood (near Galle Face, Colombo 7/Cinnamon Gardens, or near the airport) or by price range (boutique vs large chain), tell me which area or budget and I’ll refine the list.