Buying 10 sample stickers is the way to go

It's a big deal to spend £50 - £100 on stickers without knowing exactly how the product will look and feel, so the 'Sample' pack is a great way to try it out before you buy more. I was impressed by the quality of the stickers and with the customer service helping me to get it right before committing to printing. If you could improve one thing I'd suggest emphasising that your card doesn't get charged until you're 100% confident and happy with your design proof. This would take away the last bit of uncertainty about the process :-)