I've not used that product.
 
Mostly I use a blower - same as Dan. Bought mine as a Jessops own make because it is much cheaper - it is a Giotto Rocket Blower inside the pack       exactly the same, the rubber bulb has Giotto in the moulding.  

I also occasionally use a brush if the blower does not get all the dust off.  Either get a specific brush for sensor cleaning, or know exactly what you are buying. Most brushes will leave marks on the sensor so it is a must to get it right !

Another place to get a professional clean while you wait is:

Fixation
Unit C, 250 Kennington Lane
LONDON
SE11 5RD

020 7582 3294

£25 +vat 

Worthwhile - they will do a better job than you can. Price includes cleaning the focussing screen, mirrorbox and the back any fitted lens or cap.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html