The Line 6 gear is really good. But then so is the Digitech and the Korg. The others are also pretty nice. I have spent over a year looking at them and trying them all out.
There is one above all the rest, however. That is the Vox Valvetronix. You can run it out of the line out, or through the built in Celestion(s) or however and it sounds full and rich. The models are excellent.
You can find a good example of any tone or character you could wish for from the Vox. The "stomp box" effects are great as are all of the others.
Yeah, the Line 6 is good. In my opinion the Digitech GNX is better yet, but the Vox is somehow way ahead. Perhaps the 12AX7 in the output circuit. Also the ability to run 1 watt full output up to 60 or 120. You can have a really nice full driven sound from the Vox speaker(s) while your children sleep down the hallway.
Believe me, I have done this and recorded it.
Got to say I am looking forward to the new Vox Valvetronix Tone Lab. That I will use straight into my recorders.
First is the song, then is the rest.