One of the best parts of this is the surprise. It's a little private treat just for you (and whoever you want to see your new fancy pants obvs!). You can control some elements such as specifying whether you like your knickers to be lacy or simple, colourful or classic. They also give you the option to opt out from thongs if they're not your thing. Sizes run from 8-18 and cover styles from high waisted vintage to French to bikini. I got a pair of slinky pink briefs with some cute but not fussy black bows and stitched detailing.
Price wise, you can get a one off pair for £18 or £48 for three months, £90 for six months and £168 for a year. That works out at £16, £15 and £14 per pair respectively. It might seem a bit pricey but think about how easily you can fritter away £16 on things like magazines and coffee and cocktails. Alternatively, bookmark this post and leave it in a handy place where someone you trust to take the hint can buy them for you!