zxcvbob wrote:

Anybody familiar with them?

Yes! They are the cat's whiskers.

Is the "EZ" (model P4460) worth an
extra $15 over model P4400?

If you need sizzle with your steak, I suppose so. It appears that
the EZ has a built in calculator so you can plug in your electric cost
& 'predict' annual costs.

Amazon has the basic P4400 for $20.62 [buy something else for $5 & the
shipping is free]. The 4600 is $34. I wouldn't spend the
extra, myself. I like the KISS principle-- If I need to
calculate cost or future usage I'll do the math in my head or on a $2
calculator. . . or maybe even dig out a pencil.

Jim