Neon,
I had an opportunity to try a Line 6 Pod, and realized that it was not for me because it actually does a good job of sounding like a real guitar amp - and I don't like guitar amps...
For those times when I have friends over to play some tunes at my little apartment, I have a crappy little 12 watt solid-state guitar amp; a Digitech pedal provides the sound-shaping, either my old RP-12, or a little RP-100A.
Digitech guitar processors will provide a reasonably accurate amp simulation, but they really shine when it comes to creating your own idea of how a guitar/amp should sound. Clean, powerful, versatile.
As with
all equipment,
learn how to use your Line 6 Spider. Work with it, explore the possibilities, then learn how to make it sound the way you think it should. It's a quality amplifier - you won't be disappointed. Besides, I've heard some really bad amps sound really good...in the right hands...