That's a pretty good deal. My thanks to Mark for the first Amazon link - I got one.
As for working out of the box I am using an HP Microserver running Arch, rather than a Pi. The driver was shipped as part of the usual kernel but the firmware was not. The journal tells you which file it can't find, a quick Google found the file, drop into /lib/firmware and all is fine.
Compared to the PCTV Systems DVB-T2 292e, my first tuner stick, the August one has the advantage of a normal coax plug for the aerial connection which makes it less likely to fall out. The 292e uses a smaller plug, more like SMA sized but slightly different; they supply an adaptor and, undisturbed, it seems to be fine but when I rummaged around to fit the second tuner stick it did fall out.
On sensitivity, it is usual to use a high gain aerial. We don't have one, just the old-style UHF aerial but we do have a cheap as chips TV distribution amplifier. The two tuner sticks have so far been flawless whereas one of our TVs occasionally has signal trouble.