That looks the same.
To be fair, I haven't used any others, but this one worked pretty well.
It's not complex, but it worked as intended. It comes with a couple of 16g cartridges, but Simon gave me some 25g ones, which were each more than enough for a road tyre (it probably filled 1½ tyres per cartridge).
The 16g ones, which seem to be more easily available, are meant to be OK for a single road tyre (120psi) or MTB tyre (40psi).
(I paid about 70p each for a heap of cartridges, only not from a bicycle supplier!)