The 1 thing that tastes worse than whey is lumpy whey. I saw the 2 types of mixers- this one s as d the type with the metal coil inside. For me- adding a bit of metal into the mix was really unappealing - plus it looked problematic in a dishwasher- so I went for this one eith the plastic removable seive like tray. Every part of this is dishwasher safe. The lid screws on easily, the attached pop on pop off cover over the spout is very secure and the seive stays securely put when you’re using it ( both shaking it to mix and just when drinking). Never slips. The *only* criticism I have is the measurements running up one side in 100ml increments. The numbers and as Leo tge fill lines are translucent. You can’t really make them out unless you are face close to them which isn’t ideal when your trying to pour milk in it at the same time. To improve it- I’d have the measuring scale on opposite side ( so 2 sets of measurements do you can see what’s what without having to turn the shaker 360 ) AND I’d make the numbers along with the fill lines printed/contrasting in colour. To solve this for me I put a black sharpie line on the fill line I always go to- this will fade a little after multiple dishwasher cleans but it means I can see where I’m pouring milk to accurately from standing at the kitchen counter.

Good shaker although the end cap has almost come away from the lid after 3 uses. 

White it looks nice and has a decent volume, liquid will leak out around the cap, no matter how tightly you close it.

it was amazing very useful when blended with fruits

Easy to use, mixes well, very easy to clean and even makes it easy to drink the last few drops in the bottom.

spills a lot and didn’t even come with a spring to mix my protein shake 

Great product at a great price and great delivery time, what more could you ask for

Never get clumps and mixes really well. Easy to clean and great size. Doesn’t leak either ! 

Design was annoying, mixed well, broke easily. I would recommend getting the metal ones much better!

Love the aesthetic and colour, perfect size and clear measuring markers Shakes up perfectly, though make sure the lid is on tight (I made this mistake and had a lil mini spillage) - when it's on properly it hold the mix in perfectly no matter how hard you shake it!