Overall I really like this shaker as it's quite robust. I did notice that sometimes it might let go some of the liquid (probably doesn't seal all the time if you have some powder stuck on the seals). Powder shakes well but not great, sometimes leaves the lumps but I'm used to that The only disappointment is that it's not dishwasher safe and it's my own fault for not checking with the support, I'm kind of used to everything being dishwasher safe nowadays but after washing this the top metal cover has come off.

Pro: Works pretty well mixing and results in little lumps remaining Con: The plastic lid. Which is quite a shame considering the body is stainless steel and would have lasted a while otherwise. The lid also has really awkward edges and corners making it extremely hard to give it a proper clean, especially when the milk has dried up a bit.

I got this item for free on my last purchase, and honestly I love it! The blender piece is in the cap if the bottle which i very convenient! Makes my pre and post work out drinks stay very cold!

I find it much easier to clean than a typical plastic shaker, also seems to stay cold longer to which is ideal in the warm gyms. 

Got this for free during the MyProtein birthday and I'm quite happy I did! Didn't think this would mix my shake well considering it doesn't have an external mixing bit but it does the job very well. I also haven't experienced any leaking, as other users say, after 3 weeks of usage. Very easy to wash and doesn't leave behind any lingering smell. Only negative I have is that the interior takes a long time to dry. Also maybe change the units to staple numbers of [ml]? Up the metal shaker!

I have many shaker bottles, here are some reasons why this is not a good product. 1. Metal is great thermal conductor - Hot water inside would burn your hands when holding it. Cold water inside will lose it's temperature faster, compared to plastic shakers 2. Leaky - There's not enough rubber on the lid to create a good seal. It is super difficult to perfectly screw on the top. 3. Logo washes off - This is normal, but I had the product only one week before the logo on the outside started to peel and fade. I love MyProtein but this product is not good for what it's meant to do. I now just use it as a drinking cup at home.

Looks cool. However the seal in the metal at the bottom split the first time I dropped it. I got a metal one because I thought it would be tough

I see people saying it leaks or something along those lines. That is not my experience. I have used it every day for a few months now and it is perfect. I love the metal, it never holds a scent, never retains any powder, always easy to clean, never a problem with the seal or the lid itself. I am so happy to eliminate the plastic shakers that would deform, or smell if I ever forgot to rinse it out immediately. This is by far one of my happiest purchases. 

Great for work as kept smashing bottles as they fell! Thought I would try this and within 2 uses the cap which flips open the bottle completely ripped making the bottle unusable. Very disappointed this occured, never had this happen on the other protein bottles in the past.

The seal in the lid doesn’t seem to link up with the seal on the bottle. When shaken vigorously, the shake begins to come out of the bottle.  It is a very difficult bottle to do up and leaks if laid down.