I used mine with just the hose for a while before modifying per the link.
It didn't work at first even though I opened the valve very slowly, but after a while it worked normally. The mod just makes it work right out the gate with no problems.
If you want to use the regular hose everyone else has recommended I think it'll work just fine, even for portable, but getting it to work the first time after each move will take some time, so set it up and try to start it before you need it. After that, in my experience, it will work perfectly. (just problems early on after each move)