.I bought this in February 2025. I couldn't be happier :D. I had tried two other bladders from other companies which were the "shove inside your jacket type". One ended up failing on my first ride with it rather spectacularly. At least my body was liquid-cooled for an hour :D. The other saw action as bladder for a while, but I had to keep it in my tail bag and eventually sprang a leak within the first six months.
THIS one on the other hand has been totally reliable. I have used it comfortably while riding and while waiting for a trail to clear and at traffic lights. I have used it with a dual-sport/ADV helmet and with a Sport touring helmet with and without balaclavas. One plastic clip thingy has disappeared however the bag functions as intended. Also since I tend to overstuff bags, top boxes, etc. I appreciate the minimal size .Mine only carries an Allen key for my helmet, some Electral ORS(W.H.O approved) and maybe a protein bar and of course the bladder itself and the water pipe. My only nitpick is that it's a bit of a dance to fill up while solo. So a small stand/thingy to prop it up while refilling might be nice.
In summary, tldr : Great Hydration pack, fill bladder chuck it in the fridge and enjoy cold water for the first few hours of your ride. ALSO a bit of a hassle to clean the bladder so don't put anything other than water in the bladder. Also also the ViaTerra branding has faded a bit due to use and the fact that I haven't ever washed it :P .