I'd say that one of the most important things is how you prepare it, if you've never gave it any thought, chances are you never had a properly brewed tea. And brewing is very important: if you prepared say, sencha, the way you'd prepare black tea, it would taste
really bad. Oh, and not all the bagged teas are that bad: Twinings for one makes pretty decent bagged tea. But I usually stick to loose leaf tea.
I enjoy a good Japanese Green tea, but not Matcha as much. (I feel the rices makes it taste like seaweed)
I think you meant genmaicha(although you can get genmaicha with added matcha). I agree it has a pretty unique flavour, but I find it really suitable for colder days.
Back on topic, since we got derailed pretty badly:
One more thing I got from anime, after watching Ichigo Mashimaro I started thinking about buying a scooter. Didn't get around to it just yet, but unless something unexpected comes up, I'll probably get one in spring.