I like the shape and concept, though my extra large hands can easily grasp the bottle, while small hands may struggle. The sides have vertical ribs which would likely be an aid to those whose hands are not unusually large.
I had already tried some Mason jar pitcher tops, which are too difficult to open the spout, and extremely difficult to unscrew the pitcher attachment. I deducted a star for unsightly blemishes and significant irregularities in the glass, which are entirely cosmetic, and do not affect function in the least. The glass reminds of some Depression glass, which often had tiny bubbles, specks of debris, and occasional slight irregularities.
The caps appear to be sturdy, and a lifting tab was thoughtfully designed into the silicone gasket to facilitate removal for cleaning. I don't intend to use the silicone pour spout unless I misplace a cap.
I don't use a dishwasher, but believe it would be unwise to wash the caps other than by hand, and the shape of the jar body is not appropriate to mechanical cleaning, anyway. I intend to use a bottle brush, should vigorous shaking prove to be inadequate, along with a dish brush for the caps. If I was obsessive, I would rinse in a bleach solution. I do not know if they could withstand sterilization in an Instant Pot, but it is an idea.
I like these handy bottles, and believe they are value priced. Easy recommendation.