There aren't too many other options in Pasto, in fact this is the only hostel we could find. It's overpriced but absolutely fine for a layover on your way to/from Ecuador.
Hotel Diana in Jardin is one of the cheaper options for travellers making it to this great town in Colombia.
The guys that own Hostel Trail know exactly what they're doing. This hostel has everything you could possibly want with regards to amenities, just make sure you book ahead if visiting for Semana Santa.
The guest kitchen is awful but El Jardin is one of the cheapest options for budget backpackers in San Agustin. Here's our review.