I really enjoyed staying at Eric's home during my visit to Bethesda. I'll start off with all the good things about this space. First off, it would be extremely hard to beat the price! The room has plenty of space, has a desk provided, and there is a very reliable wifi connection. They also have a very nice modern shower that appears to be recently installed. Another major plus is that the house is in a very safe neighborhood, directly next to several bus stops. Can't beat the convenience! The room also comes with its own bathroom, which is really convenient. They are very accommodating hosts, offering refrigerator space and conveniently positioning a microwave next to the room. You'll just have to walk about 50 feet to get to the shower, which appeared to be allotted to guests during their stay. The shower was very clean. Fresh towels are provided, along with a personal bar of soap and ample shampoo, which was nice. The hosts are also very kind and always eager to help in any way they can.
I don't like giving negative reviews, but I have to bring up one major issue: loud, squeaking floorboards. This is pretty unavoidable, as the guest room is in the basement, which is directly under the main living space (living room/dining room/kitchen). Whenever someone moves upstairs, you'll hear it loudly! Especially when chairs are being slid on the ground. I sleep with earplugs, so i was quite shocked at how my earplugs couldn't even handle it. If you're trying to get to bed early, this may be a problem. I was woken up several times throughout the night (every ~15 mins or so) until ~12 AM when everyone started to wind down for the day. I ended up going to bed extra late just to avoid this disturbance. If you're a night owl, you really shouldn't have any issues. When I went to bed after the squeaking stopped, I slept very soundly.
The minor issue I noticed was that the floors of the bedroom were rather dirty. There were dead bugs, bits of rice, and other debris giving the impression that the room hadn't been vacuumed for at least several months, if not longer. There was also stray cat food on a bookshelf and on the floor, so the room could use some tidying. I'm also allergic to cats and didn't notice the disclaimer that they own a cat. That being said, I actually didn't have any issues with allergies because the cat was restricted to the front entry room.
Overall, you can't beat the price for a convenient airbnb like this and I really enjoyed my time in Bethesda.