It’s much, much quicker, simpler, and easier to reach into the ear canal and gently scrape out the wax. The few times I used any fluid, it was a tiresome affair, and it never really got out all of the wax that could start to build. You would have to do it every other day to prevent real buildup, and that would be a gigantic pain.
The peroxide didn’t work for me once the wax became impacted. Maybe if I had repeated it several times in the course of a day, but it was easier to just repeat the trip to the doctor to have them get it out. Losing your hearing absolutely sucks, and I didn’t want to delay getting it back.