I really, really love the Cadence capsules I bought through Thingdrop, but only at the (very heavily) discounted price I paid for them.
Pros:
The online shopping experience was great - it was super fun to choose the colors and labels for my capsules.
Super functional! I've taken these on a few trips now and they've been great - totally leak-proof. The size works perfectly for me for a 1 week trip, but I don't use a ton of product at a time (thin hair girlie). Love the look of them, too!
Cons:
COST - in my opinion these are simply way to expensive for what you're getting. I couldn't recommend these just based on the price. A fun, frivolous gift for a friend who loves to travel, but not something I would ever buy myself at full price.
As other reviews mention, the magnets aren't super strong. This makes it difficult to pick up the capsules when they're connected- they will sometimes just fall apart.