I prefer traditional glass covers.
I have been back and forth over the years. Currently I am using acrylic covers, and honestly I like it. With cheap LEDs, it takes the disco away from all the small droplets of water on the lid.
Does your glass "fog" up? Do you treat it with anything? Rain-x?
Lots of pros and cons.
Open top is more evap. Fish get out. You can get netting for a lid, and the fish stay in then. Better gas exchange. More heat loss due to evap.
The lids keep heat and humidity in. It keeps the tank warmer. It can block light, and needs cleaned from time to time. really keeps fish in.