Dude you got the production value down on this one! Every thing sounds really good nothing feels drowned out or too quite. Now the synth thing is a really cool part but I think if you only used it on the chorus it would feel a lot better.
I think a lot of people can get turned off by it because it just goes and goes and goes the whole song without really changing and before you know it the good things about the song wont matter to anyone because that synth line is so distracting.
You have good solo ideas but if you haven't already you should study Harmonic minor scales for guitar, I find them to be good for almost every thing from creating melody lines to shredding its something that really helped me in playing my own solos especially on music like this.
That lead synth should go somewhere or have some sort of variation to the melody. Other than that, sounding good.
Please contact me if you would like to use this in a project. We can discuss the details.