Use IFT as a resume booster, and perhaps for PRN work when you get your real FT job. You can get some good critical care ALS work occasionally. The best chance for this is on the overnight shifts, since it may only be you and one other truck on the road until 6a in many places. Good critical care IFT can be a welcome break from the monitor/O2 txps, but a good portion of these calls should have two providers in the back, especially vented/sedated pts, or someone on an IABP. Frequently a private company may insist that that you take the pt. alone, claiming that there are no other available units to assist. If that pt. expires in your care, I wouldn't put it past the company to throw you under the bus make it like you decided to do the txp without help. Also, if you need a lift assist, you may or not get it, if they don't want to give up a crew when it's busy.
Basically, I would only work daytime when you have more resources available for lift assists and double-medic transfers. Don't get stuck at 0200hrs with no help.
I would recommend only working for hospital-based IFT, unless you're 100% positive that the private company does right by their employees. Hospitals tend to pay more, have better benefits, and more resources to help you out. You can also move laterally within the health system after starting out in EMS. I've worked for NS-LIJ CEMS in NYC, and Valley Medical Txp in Winchester VA, and they both treated me wonderfully. The privates, not so much.