I went to see this last night and I was pleasantly surprised. "Ouija" is a definite throwback to the days when they produced horror movies that had actual budgets. Over the last few years we've been inundated with found footage and similar low budget fare. A low budget horror movie used to be one that was under $10 million. Now $10 million is considered a high budget one.
"Ouija" also reminds me of the horror films of the 1980's. There is some actual character development and the characters generally avoid doing stupid things. The script even manages to throw in a twist, although it won't be a shock to most horror fans.
In general this is a very solid "B" movie that deserves more praise than it's getting.