How hard is the Emerald Spire?

[JDawg75]

Reason I'm asking is I've created a character I'd like to try soloing, and have found a GM willing to work with me. If it's impossible then I'll try something else, suggestions are welcome. From 0-10 how hard is the superdungeon?

[Azothath]

read the Product Reviews

it's variable by level. I'll leave it to the product reviews and the PF Adventures forum.
The AP has errors. As an omnibus adventure coordination/planning, challenge CR targets, and then mapping could have been better.
Solo playing is just the dregs.