We've tried all these other cups, but they all leak, or grow mold where you can't clean it, or both. But THESE cups actually are leak proof, super easy to disassemble and dishwasher safe. The only thing I would say is, wash the silicone disc by hand and rinse thoroughly as silicone picks up the scent of the dishwasher and has a hard time releasing all the soap. But my 2 year old does a great job with these cups, they're super durable and I get a big stupid smile on my face every time I find one of these tipped over on the floor with juice inside and my carpet is still dry. Get these. Use them for everything. Never look back. Be overly dramatic when you tell people how much you love them. Realize you need more interactions with adults. But yeah, get these cups.