Clemson;
Whether or not that's a good deal greatly depends on what you expect it to do. As Krs pointed out, it has a body formed from light sheet metal. Until you know the exact parameters of any thermal resistance testing, the figures that may be given really don't mean much. So, is this RSC meant to be a storage unit that provides security against inquisitive kids & smash/grab in-n-out burglars or are you expecting substantial resistance to physical attack & total house fire survival of the contents?
In the first case, it may be ideal for your needs & budget. However, if you are seriously expecting the contents to stay in the container undamaged in the event of either a severe house fire or determined physical attack, you're almost certainly going to be disappointed.
Thankfully, severe housefires and assaults on safes are relatively rare. Therefore, the odds are with you that the container will never be put to the test. But you need to actively assess your particular threat level before buying.
What I'm saying is make an informed decision about the unit before you buy. Don't believe advertising bumf, do some research. THR is a good place to start. Use search for terms like RSC (Residential Security Container) and find out exactly what that means.
900F