Camping Roma was OK for me and my husband. We had the 2/3 person bungalow for a week, and it was just fine for us, nice to have a private bathroom. Walls are thin, so you hear everything (especially the very large groups of teens who were staying around us and having a great time hanging out late at night outside).
The actual facilities on the campsite were pretty great - pool, bar, restaurant, small supermarket, laundry (€3.50 to wash and another €3.50 to dry), and internet. There was no wireless computer access, and using their computers was a bit pricey - something like €2 for 15 minutes, I would recommend just using one of the internet points by the Metro stop, way cheaper. The information desk was helpful, though, and all the staff we encountered was friendly. Across the street was a pretty good-sized supermarket.
The main problem with this place: location. Even though it's geographically very close to the city, logistically it's a nightmare. You have to take the Metro to get out to the area, but the metro line currently closes at 9pm, which means you need to take a supplementary MetroBus. Then you need a separate bus to get to the campsite, and these buses seem to come only when it really wants to (in one case, never). For people like us who don't mind walking, this wouldn't be a problem, since the campsite is fairly close to the metro stop. However, the camp is located along a massive highway with no shoulder and traffic at full speed. So walking is literally impossible. Recommendation - don't stay here if you plan to stay out late, unless you like taxis.
In terms of safety, it seemed like any typical urban area. Don't look like an idiotic tourist, be aware of your personal safety, and you should be fine.