The Avex Recharge bottle is very well insulated and easy to use. It has yet to leak even a little bit (I keep it full in my backpack) and additionally has a trigger / button for sipping safely in the car -- it works better than I had expected.
In addition to typical morning use, I've started using it to bring tea on ski tours which has been game changing -- try it.
Best of all, I've been washing the top and the bottom in the dishwasher for months now with no problem. After researching on the Avex website, I was confused about whether it was dishwasher safe, so I called the Avex customer support line. They said that the coating might flake off over time in the dishwasher (hasn't happened to me yet though), but the vacuum insulation and functionality would be just fine.