Let me preface this by saying that I have not personally fished the Gompers Park lagoon. However, I am quite familiar with it through others.
Yes, it does get stocked, usually with catfish and bluegill. There are some bass in there but they can be pretty reclusive and are aware of all the pressure.
If you are looking for some bass there, my advice would be to fish during "non-peak" hours. Weekends can have lots of bobber and worm fishermen lots of kids running around, and lots of commotion that make bass angling tough. But if you can get out during the weekdays, especially early or late, and work some of those weedy areas with classic bass patterns, you might be surprised.
Let us know how you do there. If it's near to you, give it some chances for sure.