Not well. As we all keep saying, the best way to monitor batteries on EV's is with a voltmeter/wattmeter. The favorite tool for that being the Cyclanalyst invented by Justin at Grin Cycles. But cheaper wattmeter options still work ok.
Particularly with lifepo4, the discharge curve is so flat that you basicly notice the bike is slower, and bam half a mile later you are out. The previous 15-20 miles all felt the same. So a meter like the one you linked to will do about the same thing, it will read full right up to the last mile, then read dead when the battery voltage goes off the cliff just before the bms turns off.
But a wattmeter tells you how many watthours have been sucked from the battery. After some experience, You know that your particular ping battery has the ability to deliver say, 900wh. Now you know exactly where you stand when you look at the wattmeter and see you've used 500wh. You are exactly 50wh past halfway. On the CA, you get a reading of your average wh/mi so far. So if you know you have about 400wh left, and you know the wh/mi, you can now predict very accurately how many miles you can still travel.
Even if you just use a simple voltmeter, with some experience you will get a feel for if my voltage is say 52v, I'm somwhere vaguely in the middle. But if I see 50v resting, now I'm getting into those last 3 miles or so. You can get that warning in time to start really conserving if you must to make it home. Not so great, but still better than finding out you are out with just a half mile worth of juice left.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.