Thinking about buying your first vacpot but don't know which to get? Buy the Yama...it's superb!
Positive Product Points
This is a terrific value for the money. The Yama is easy to use and brews great coffee. I like the cloth filter (have had much better experiences with it than with either the plastic thingy on my old Bodum or with glass rods I've bought on e-bay). The very well designed gasket makes it virtually foolproof. Can be used on any kind of stove.
Negative Product Points
A little small (it hold 5 Japanese-size cups...enough coffee for three smallish mugs or two normal coffee drinkers). Some find the cloth filter to be a PITA to clean (though it can be replaced with a variety of other filtering devices). The flat bottom means that more water stays "south" than in round-bottomed vac pots (though I'm unconvinced this actually makes a difference). Replacement Yama filters can be hard to come by (though Hario filters are virtually identical and much easier to find).
I love this vac pot. Years ago, I was given an old Bodum Santos vacpot (the stovetop model, not the more recent automatic one). I could never get the thing to work with any consistency. Indeed, it stalled so frequently, that I gave up on it after only a dozen uses. Thanks largely to this site, I took a renewed interest in vacpots last year and decided to purchase a Yama. The price seemed right and the reviews were good. Boy am I glad I did! This is an excellent starter vacpot (and, at least for this vacpot convert, its more than that as well). It brews excellent coffee utterly reliably. And the price is right. This is now the way I brew coffee 95% of the time. The only drawback is the Yama's size. But since there are only two coffee drinkers in my household, that's not a problem for me.
As always, my buying experience from Tom at Sweetmarias was first-rate. They have a very useful tipsheet on this product, as well.