This two CD set features the first and the third studio releases of the band (the second one is the famous Erpland). I find that I listen to Strangetitude a great more than Pungent, although it is also good (a bit more psychodelic than other works by them, I think). It is Strangetitude that I prefer, maybe because it is a bit more like Erpland, and also because of John's flute on it. Also it has many of those middle-eastern ozric pieces that I like.
Like many of O.T.'s CD's, it is also a good value, I think, for a two CD set. Recommended, although if you don't own Erpland I'd get it first.