My mountain bike is a Giant Iguana that I bought in 1993 because it was highly reviewed by that big consumer magazine that never wants to be quoted anywhere. I haven't regretted the purchase a bit, though coping with the largely unavailable Suntour components has got to be somewhat of a problem (I think the newer Iguanas have, or had, Shimano).
My other bike is an old Nishiki road bike I bought used from a good local dealer and I've enjoyed it a lot, too. I put lots of money into upgrading it and fixing it up. That was when I thought I could afford to spend money like that!
I used the Iguana somewhat more for commuting, but sometimes it was more of a road-bike kind of day and I rode to work on the Nishiki. No rack on it, so I would carry a backpack. Rack and panniers on the Iguana, eventually a Nightsun lighting system which now sits abandoned in a corner because I can't afford a new $140 battery for it and wouldn't buy one if I could.