I have a Kuerig and my mother has the Breville (which also takes K-cups) -- I won't ever go back to a multi-cup making machine. Every cup is hot and fresh and takes seconds. There is no nasty pot, filter or parts to have sit or get funky. Plus, you can buy K-cups for hot tea, hot cocoa, etc. Much more functionality then the usual coffee maker. As to the "not hot enough" our Kuerig brews at 190 degrees. It's VERY hot. I use a ton of cream and it doesn't make it too cold.
Could you talk to him about buying one to try - since you've had a multicup for years, if you hate it -- you can return it within the return period. Kohl's sells the Kuerig coffee makers and they are very reasonable with their return policy. Seems like you have nothing to lose to at least try one and see if you really like it.