Not a bad price either, buy one and I will barrow it
I don't need one.
I have Speed Bleeders on most of my bikes now. SB's are more trouble free to use once they're installed.
The only thing I would worry about with this item is that it might blow off when in use. That would be a mess. Time will tell if the internal seal on the new brake bleeder will hold up and still be drip free after many uses.
That said............It's proably a good item. Motorcycle Consumer News likes them.