After successfully piling away through the content the HoW has to offer, out of the two DLC it's far superior to Crota's End, but I have a feeling TAKEN KING (With Oryx, Crota's Father - who is pissed we killed his son off) will be a decent one. I hope they've learned from Crota, but time will tell.
He looks like a badass.
Prison of Elders in HoW is the whole reason to buy it. I love the wave assault mechanics and the different level of the prisons to do, along with the wealth of new exotics. Definitely worth a look!