I have been testing out 2 bottles this week on my work Grand and a older Woodvil.
Both went on easy. A little bit more time spent on the Woodvil's older connector.
These bottles are soft and squonk easy. It is a little challenge to not push too hard and flood the RM2. I usually watch the air hole for that little bit of juice that let's me know it is enough.
They seem to be a quality made product. Only time will tell if they will last as long as our regular bottles.
Bottle fit, squonking, and quality are good IMO.
BUT.....
The cap is very slick. I mean there is nothing to keep your fingers from sliding. I am finding it a real chore to remove the cap and to replace it. I am having difficulty keeping the bottle full of juice, upright and not spilling some juice. The juice gets on my fingertips and then there is no way in hell to turn that cap. Even if I can get the cap started without spilling juice, the bottle will tilt while I am trying to grab on to the cap to turn it. The cap seems to take some effort to turn.
Every time I fill a bottle I must keep a paper towel handy and keep wiping my finger and thumb. For those that really know me: Licking my fingers does NOT help! LOL.
I am going to try to find something to place around the cap to give my fingers some traction.
Please don't take this post as me just wanting to complain. It was made because it is my own take on these bottles and I feel others just might find the same thing happening.