My first smartphone was the Samsung Instinct...
I loved that phone. My first got drowned in a river, replaced it with another, that got stolen on the Metro.
I went to get another replacement, and was told the Instinct was no longer available. So the Sprint salesman told me about the HTC Hero. Bought it and fell in love with Android. The only annoyance was the limited memory.
I then decided to take an early upgrade to the HTC EVO. I have had it for over a year and it is the best smartphone I have owned so far.
I am planning on upgrading to the LTEVO, and then using my current EVO as my work phone to replace the Blackberry I use for work.