Re: what is ur oponion about RG1527RB
I bought one two months ago. It's my first 7 string, so I had to get used to the new neck. Believe me, this comes really quick (at least it was easy for me).
The pickups aren't bad, but aren't awesome either. They lack harmonic response on the 7th string and there's not enough output for my taste. I'll change them when I have the money for a Lundgren M7, or settle for my favourite Tone Zone/Air Norton combo.
As you've already read it's MIJ, and ships in a hard case.
You could say that it's oriented for a metal player, but the clean tone of a 7 string guitar is really great. Check albums like A Change of Seasons by Dream Theater and The Art of Navigating by the Stars by Sieges Even, to see the potential of a 7string played with no distortion.
Overall it's a great guitar IMHO!