I recently bought a Seagull bags custom Large Standard Bag. I spent £217 on the bag including shipping and paid £38 on custom charges.
The bag is absolutely brilliantly made, the quality of the cordura and tarp is second to none, couple this with the high quality stitching and well thought out design this bag puts others in the shade.
The size of the bag is perfect for my commute and weekend stays. I will keep anyone updated with a long term review if they are interested, but please see the photos attached for now.
Also, yes the colourscheme is vein and matches my bike, but hey, you have to take the comical route through life!
Any questions welcome. Hopefully my photos are acceptable.