I attended the hybrid program for about 4 month before I decided it was too much for me. I disagree that the teachers are bad, they are the same teachers as the regular programs. I left because I have a child and a job, and the schedule was too much. I did go back the next year and applied for the online program again, but didn't get in (Its extremely competitive, and I applied back too soon). I ended up doing the evening program the following fall, which was a lot easier on my schedule. If you go for the online, don't have anything else going on in your life. Like not kids, no job, no home drama
They also tell you when you go to orientation to never make any big changes in your life. This is especially true in the online because any changes will distract you at home. Girl you do not need a new screaming baby distracting you from your online studies, and that man had better learn that his drama can wait until your done your 8 hours of online work every day!
As for campus differences, I think Catonsville is crowded. Essex seems like parking is worse, but they have all new science building and new features. It seems friendlier for some reason, and I think the science teachers there get better reviews on rate my professor.