I haven't had any experience with that company, but just wanted to suggest something..
Instead of spending $120 to rent one for just a day or 2, might want to think about buying one instead.
Dh had bought a decent projector off ebay for (i think) about $250 few yrs ago (he had been wanting one for quite a while), and we all love it!
The first year, we hosted a back-to-school movie night, and had hotdogs/chips/pop, and showed a kid-friendly movie.. had the kids in the neighborhood come over with their parents, and had a blast.
Since then, we're now addicted to having summer-night movie night at our house, and having dd's neighbor-friends (and their parents) come over to watch a movie and have some popcorn.
We show it on the side of our garage and just have everyone bring a blanket to sit on.
Once you show one movie, your kids will be begging for them quite frequently, trust me, lol!
But whatever you choose, have fun with your evening!!