Total shape, not the feature list
Write down what your team touches weekly and check your own quote, for your own region, to see what is included in the plan you would actually buy. Then compare the administrative load: how many modules have settings, who owns them, and how long a new joiner takes to become productive. For a lean team, administration is a real cost that never appears in a comparison table but shows up in every week of the year.
Compliance you can evidence rather than assume
Selling by phone from Singapore comes with obligations that generic comparisons ignore. Before buying, check how consent is recorded on the contact, whether preference flags exist, whether there is an audit trail on changes, and how you would produce evidence if a customer asked. Ask how the dialer supports suppression of numbers you must not call and how your own screening process against national do-not-call rules fits into the daily workflow rather than sitting beside it.
Whether your data stays portable
Check that contacts, deals, activities, notes and custom fields can be exported by you, on demand, in open formats, and confirm what happens to attachments and call recordings. Portability is a structural property, not a matter of trust, and a product that is easy to leave is usually easy to adopt. For a small team without an internal systems owner, that property is worth more than an extra reporting module.