Most channel managers can show an impressive list of connected channels. That is the easy part of the comparison. The useful differences appear when the hotel has to manage an exception.
Start with your actual distribution model
List the channels that genuinely matter, the PMS or CRS that owns inventory, the rate structures you use, the number of properties, who maintains mappings and which restrictions the revenue team changes regularly. Buy for that operating model, not a theoretical future catalogue.
The tests that expose the difference
Mapping
Ask how room types, rate plans, occupancy and derived rates are mapped, how bulk changes work and how the system shows incomplete or broken mapping. A powerful connection that is difficult to audit becomes an operational risk.
Restrictions
Test minimum stay, maximum stay, closed to arrival, closed to departure, stop sell and occupancy pricing where relevant. The issue is not whether a feature exists somewhere. It is whether the channels you depend on receive and interpret it as expected.
Reservation changes
Follow new bookings, modifications and cancellations. Check how payment data, virtual cards, guest messages and special requests move. The difficult cases are more revealing than a clean new reservation.
Failure visibility
Ask what happens when an update fails. Who is alerted? Can the operator see what value was rejected and why? Can they retry safely? Quiet failures create the expensive kind of automation: work that looks finished until a guest proves otherwise.
Portfolio control
For multiple properties, test permissions, templates, bulk actions, reporting and whether a central team can see exceptions without taking away useful property-level control.
Support
Distribution failures do not respect office hours. Understand escalation, ownership between vendors and what evidence support needs before investigating. Integration support is often where the practical value of a platform is decided.
Do not ask only how many channels a platform connects. Ask how clearly it behaves when the connection is wrong.
The best channel manager is the one your team can operate confidently when rates, mappings and reservations stop behaving like the demo.