Twunk - no. No bonuses. You'd just be...shopping online.
Whether you feel that it's good value shopping or not is another matter. But there are plenty of people that don't budget, that only buy brands, that go to Sainsbury's and spend £250 on shopping you could get from Lidl for 80 quid...some people just do. If you buy products individually, LTW is not that different.
And yes, I know all the Yazoo comments are very witty and all the rest. But really, they're just selling food and toiletries and cleaning stuff. All brands, individually roughly the price you would pay in Sainsbury's or Tesco. And yes there are a few weird bits that I've never seen or heard of and some food I wouldn't touch with a bargepole...but much like there is in every Supermarket.