We stayed at the motorsport hotel, cheap enough and decent meals downstairs. Used a car from rent-racecar.de, very friendly people highly recommended - but when they let you pick a car go for the one with the newest tyres!
We scheduled our visit on the weekend of a vln race, so I was able to watch the racing one day and drive the track on the next. Supposedly not allowed camera's but I saw a few guys with pov type set-ups and wished I had taken mine - just be discreet. It's a good idea to get there the minute the track opens for some clear laps, it packs out!