My favorite subscription is Birchbox. I've gotten 5 boxes from them and only one of them has not been good. Granted, I haven't gotten the full size or high priced items, but I've been happy with everything that I have gotten except for this month.
I got a free Love With Food box, and I honestly was only going to get the free box and then cancel, but I loved it! I will keep this one for a while. It's fun.
I liked BeautyBar, but I have enough skin care products so I cancelled after my second box.
I've tried and cancelled BeautyArmy, The Look Bag, Beautyfix, and Sindulge. I loved the concept of BeautyArmy, but I just wasn't impressed with any of the products that I could choose from for my second box - no matter how many times I re-did the profile. I've seen that they are getting new products, but I still haven't been able to get anything good to come up for me so I haven't repurchased. I love their CS and Nancy Lee on FB though! The Look Bag was ok, but I would rather spend that $10 on another Birchbox. Sindulge was a complete and utter waste of time. If I wouldn't have gotten a box for free, I would have been very angry over the long wait times and the crap that they sent me. Beautyfix didn't have products that "wowwed" me, and 2 of the items on their website were listed at the wrong size (they have fixed it, but I chose one of them and was so disappointed). $50 per quarter was just too much money for me to spend on something that I wasn't overly impressed with.
I just ordered my first QVC Test Tube and I'm excited to try that! It shipped today! I also won a free Glossybox and if I like that, I'll probably try it for at least a month or two. $21 is too spendy, so I don't see myself keeping it for too long. I also got a free Conscious Box last month, and while it was fun, I really have no use for 75% of the items in the box so I won't be ordering that one.
*Edited to add that I think I'm going to try White Apricot's Green Grab Bag! I've heard great things about it and it sounds fun. I also tried MyGlam and I was not impressed.