The more the merrier, Santiago. Half frame is good at events where you can get a lot of subjects in a short period of time. Otherwise it takes forever to finish a roll, unless you do a project where you take two or three photos a day for one month.
The photos that you posted, Santiago, speak well for the photographer and the camera. Yes, it's hard to wait for the long roll to be finished; I often find strange subjects towards the end of some of the rolls I shoot-- but even that gets difficult because I don't have any pets and I can't do many more of my shoes.
To illustrate what I said earlier about using up film in a half-frame camera, here is a five image stitch of the now closed Virginia Forge facility just south of Buchanan, VA on US-11.