What does the word good actually mean?
The best news is at least you're aware that there is a filter in the system <grin>. That said, words like best and worst are meaningless. If you are truly concerned you need to determine the pressure drop (IWC) across the filter verses the total pressure available within the duct system. Careful evaluation of the required value range given by Carrier should yield the answer you seek. Want some interesting reading? Order a copy of The ACCA Manual D (ISBN 1-892765-00-4) through your inter-Library loan system. BTW: If you're an HVAC tech and haven't read this manual, do so at your earliest convenience (honest counsel).
Note: Measurements with the filter in place and then removed are meaningful (does this make sense?). The vendor of the air-handler (Carrier in this case) designed their system to operate within a performance envelope (high verses low total pressure). There are restrictions on Velocities that have to be considered (residential velocities are generally limited to below 900FPM). The entire air distribution system must be viewed as a dynamic equation in which changes to any single component can have significant up & downstream consequences. Does this make sense?
Please remember that there is a significant difference between clean verses a dirty filter. It is the later that causes so many problems in a marginal system.
Ask yourself what am I trying to do? Is it protecting the equipment, or does Indoor Air Quality dominate your priorities. Yes this is science and there are compelling reasons to take the effort to do it correctly.
Any individual making recommendation without the benefit of airflow measurements mentioned above isn’t a HVAC professional but rather an opinionated soul with some other agenda, enough said.
Hope this helps more than bewilders… There simply aren’t black and while answers without the appropriate measurements and equipment operating parameters.