i need advice

ok, so i have an interview with a web design company scheduled for thursday at 3.

should i go? here are my weighing factors:

1. i am not 100% sure that this job that i am in is the right one for me. but it's not horrible and i am doing well. hell, i even got an employee recognition ($25 gift card and a "shout out" by the vp in the company newsletter. and i have been here almost 4 months. plus, we are being bought by a major corporation, which could be exciting...

2. i met one of their employees this summer and she gave me a recommendation for the job. this new place is very small (as opposed to the huge place i work for. i just got my picture taken for a corporate id. (that is how big we're talking.)

3. it took like 3 weeks to schedule this appointment. pretty annoying.

4. a lot of people are unhappy and generally pretty miserable here. one of my coworkers, also a classmate from college, is going back to her old job. today is her last day.

what to do? i am thinking i will just go and check it out. it won't hurt anything, right?