I stream Q105 a lot at work, and I don't know that I'd say its playlist is necessarily safe. I've noticed it seems to be going a lot more into the 90's than a lot of classic hits stations. This morning, I changed the station when it played Ace of Base. Ace of Base, Paula Abdul, and Alanis Morissette are instant tune outs for me, and I rarely hear Ace of Base and Alanis on most classic hits stations.
Two of my other backup stations for at work classic hits listening, KCMO-FM out of Kansas City and KQQL out of Minneapolis/St. Paul, sound a lot like rock 40 stations in the 80's and very early 90's. The presentation is usually lower energy, and they rarely touch the dance pop Q105 is willing to play.