Somehow, I can't think of a good reason to have a radio on a rally like the Chinese units that are so complicated to program or need a computer to program. Radio systems at rallies always need backups, and changing channels, tone, and mode (frequency offset half-duplex for a repeater to simplex) opens up a lot of chances for problems. Rally radios need to be simple to operate for those urgent situations that come up, especially when distractd by an urgent situation, late at night, on a long 2nd day of the event, and when you're tired. The good thing about Yaesu, Icom, and Kenwood radios is that there will usualy be someone around who can help you with any setup or operating issues you may encounter.
I think that the $30 radio someone has is a lot better than the $150 radio they don't.
I actually went ahead and bought one of these. For basic functions, it's actually a lot nicer to use than my Yaesu HT. Haven't cracked the manual yet, and I suspect that programming the memories is where it gets cumbersome, but so is my VX2R. And the programming cable cost all of $6, software is free.
Almost my entire mountain rescue team uses the Baofeng UV-5B with pretty good results. It is pretty easy to use the menus once you understand tones and offsets, and the user manual is not bad. The "Pofung UV-B5" is the same radio, just different stickers.
As I understand it the "Pofung" name is a change to make the English name pronunciation closer to the actual Chinese pronunciation. One of the original Wouxon websites had a link to Chinese speaker-"o-shen". `
At least one website lists the B5/B6 as the same chassis as the UV-5 ( and it's 1000 variations) with a newer/better case. That said , I have used the B5/B6 and liked them. I've also used the UV-82 and found it had a few issues for my uses. The PTT (push-to -talk) switch is a bit unusual. It's a rocker switch- push on the top for VFO/M A and the bottom for VFO/M B. Likely OK when handheld- when worn on the waist and used with a speaker-mic or headset, it's easy to bump it off the frequency one wants to use.