Audio Note e/lx and e/lx HE Signature

Hey guys. Was hoping to get some input from members who have experience with these speakers. I currently own the e/lx and have an opportunity to pick up a pair of the HE Signatures. Was wondering what sort of performance gains I should expect.  Richard from Steve Hoffman was kind enough to share his thoughts with me and I was hoping for some other first hand accounts. Thank you in advance.