Had for 3 years now! Never once leaked and usually mixes very well 

This shaker is a bit small so if your going to load the bottom piece with protein for your post workout shake u can only just fit 1 scoop in , also the plastic is very hard and brittle ,it doesn’t take much of a drop to fracture the bottle then it leaks as mine did . 

This shaker is ideal for my post workout shake. The small tub that attaches to the bottom of the shaker is perfect for your scoop of protein powder but I prefer to pre mix my shake and use the tub to put my post workout creatine capsules in. No leaks or lumps at all.

I absolutely love this product first of all it doesn’t leak like most shaker bottles described and it actually fits in the cup holder of my car so idea for drinking pre workout before the gym and a quick 200ml of protein for on the way home it’s perfect for both and to have close whilst driving.

I used this a few times with no issues. The mix as ok. The bottom compartment bit broke within a couple of sessions at the gym. Then after a month or so, I unfortunately dropped the shaker from approximately 1m on to a concrete floor and the whole thing shattered. Could do with being made of a more durable material.