That was the other style I looked at- as I recall there's a whole range of capacities in that series. The only thing that put me off was some people reporting they were really quite noisy, not ideal for where I use mine.
Plus the fact work gave us a £50 Amazon voucher which the one I went for nicely used
Definitely agree that sold by Amazon is the way to go on these sorts of things, a lot to be said for no BS returns.