Landed in PTY around an hour ago.

First impressions of CM, not bad at all!

Check-in YUL: No screen showing which line was for J pax, but station manager greeting all pax and asking whether in J or Y, as well as verifying visas, etc. Check-in was quick and efficient.

In-flight: Got a "new" config 737-800, I was impressed with the amount of leg room, recline and plushness of the seat. No pillows or blankets provided, but I did not feel the need to request one. The seats were quite comfortable.
Entertainment was a little limited, but I found a couple movies to watch, and kept track of the flight on the map.
service was very friendly. I was greeting by name, and warmly welcomed aboard.
I think a pre-landing snack, mixed nuts or something would have been nice. Maybe a couple more water runs.
Basic service, but executed well by a professional and personable crew, whom I cannot fault.
Catering was not bad either! Options were scrambled eggs and potatoes or Apple Crêpes.

PTY transfer & lounge experience: ​​​​ We arrived at T1, which meant a looooong walk to T2 (connecting to MDE). The walk was pleasant after 6 hours in the 737, but quite a trek.
Copa Club here in T2 is nice, but lacking.
The complimentary bar is a nice perk, but the food offerings are shockingly subpar. Just some carrot sticks, hummus, and mini finger sandwhiches.
Catering could be vastly improved.

Staff: All staff have been very polite, pleasant, and welcoming.

So overall, I'd give Copa a 7.5 / 10 so far.

A few minor adjustments could really punch them up to the next level. Arguably, one of the most important aspects- the crew, is already top notch.

Cheers to all.