Disclaimer: I'm NOT an engineer, but hopefully my thoughts will be helpful to you. I'm only chiming in because I love what I do for a living, and I can't say that my first job out of college gave me this feeling.
Remember this, you're 23 (my age) you've got a long working life ahead of you! Right now I'd seriously consider the following attributes of the working world.
1. Money - Student loans, cost of living, lifestyle, etc... let's face it, life is expensive!! When you graduate you'll have a lot of financial decisions to make. Money is great and it can buy you a lot of shiny things, but remember what you'll have to sacrafice in order to obtain it. Does more money mean working longer hours? If so, how will this affect your social life?
2. Office Culture - What's your general impression of the people you'll work with? Do you think they'll value your opinion? Will you effectively be able to work with them in a team atmosphere? - Trust me, you can't please everyone but you deserve a voice and respect no matter where you work.
3. Long Term Benefits - 401k, health insurance, company vehicle, vacation time, etc. These go a long way! The less bills you have the better. This isn't a golden ticket by any means because the IRS will have their hands in your pocket, but at least you won't see so many bills!
4. Company Stability - There's an accounting principle called "the going concern." Stated briefly this means a company is in business to continue doing business tomorrow. Do you believe based upon your research you'll have a job there tomorrow? Risk is very important, but weigh out how much of it you can tollerate.
Look on the bright side, you're about to obtain a highly respected degree. I'm a huge fan of engineers because I rely on them everyday. If you find that your first job isn't your cup of tea, then move on! It's all about marketability and my friend you've probably got it! While I don't encourage job hopping, I do encourage making informed decisions and relying on your instincts. You'll eventually find where you belong!
Good luck!!
