I've a Salix pod pro and I've spent time commuting with it. My observations are that whilst not being enormous, it's a cricket bag and therefore will take up space. What I like about it is that it isn't super huge and I get pads, helmet, two bats, gloves, strippers, two pairs of boots, shower kit and playing kit in it with no problems. I think it also looks very professional and feels high quality material wise, although I recently bust the zip on the boot tunnel.
I also have a duffle which I've tended to use for nets. I've found I can get all my kit in it, but need to carry my bat separately if I do that as the bat pocket on the side doesn't always open up properly. The duffle I have is a Slazenger V-series because it was cheap.
Salix sounds like the one which fits my specifications, it doesn't sounds to be a big bag.
The M&H Medium is;
82cm long x 33cm high x 33cm wide
While Salix is;
86cm long x 36cm high x 33cm wide
While M&H Large Canvas is;
102cm long x 40cm wide
M&H Double Decker is;
L 100cm x W 48cm
Newbery SPS is;
900 x 400 x 400
Lastly GM Original LE Duplex is;
96cm x 38cm x 42cm
So there is trifling difference, between Salix and M&H Medium Canvas I have.