When booking this adventure at the Treehugger agency near Hostal Luna/Cafe Luz, we thought we'd save a bit by stepping down a notch in price from the most expensive lodging at Neblinas del Bosque (which turns out not to be a home stay, but more of a guest house run by a German couple, just inside the Miraflor Reserve). So we chose 2 nights at the Finca -- Sonata which included 3 meals. First hint of our error came when met at the bus stop by a young man who walked some distance ahead of our shorter, older legs as we hauled our luggage for over 1 kilometer along a slippery, uphill path, (past the cute German property mentioned above) 'til we arrived to find Corina waiting for us. Corina speaks only Spanish. We were shown to a 7 bed bunkhouse, complete with one light bulb, thanks to solar panels on the roof. (Not sure if the 2 small cabins and other bunkhouse had lights as well) We were right next door to the separate baños building equipped with flush toilets. There was a workshop taking place, so our first dinner in a cold dining hall was shared by the leader who spoke English, and a group of other locals. But the second night, we were the only two remaining for dinner, then breakfast, in the dimly lit, leaking-roofed room. On a positive note, once the morning rain stopped and fog (think "cloud forest") lifted, we enjoyed a wonderful 4-hr birding hike with guide Nelson, who's a master with bird calls and info, also learning to speak English! (Pay extra for this guy, he's your best connection unless you speak Spanish.) AND . . .You'll need SERIOUS bug spray. We learned later that chiggers are microscopic, so the area wasn't really free of insects, as we'd assured ourselves when mosquitoes failed to make a showing.
Nelson later negotiated with Corina and her crew to put us on an earlier bus the next morning which stopped much nearer to the farm, thus shortening our return hike. This lengthy description is just to point out that rustic means primitive - not cozy or quaint. The campasiños opening their farms to earn a few tourist dollars are not in the hospitality business. We were left to entertain ourselves between meals, definitely no internet or electrical outlets. Bring a headlamp, good book, bug spray and your sense of humor! Once your daily admission fee is paid, you can use trails throughout the Reserve, regardless of whether you stayed overnight. As others have said, you will need a guide!