Italeri/Protar kit is well detailed but pure fit. Italeri reissue is fully plastic, not multimaterial (except tyres). Mold quality is inferior to Tamiya.
Consider also tamiya kit with a detail/superdetail set (SMS, Top Studio or Hobby Design). Almost as fine as mfh, but still significantly cheaper and easier to build
Take a look at this blog: http://lezdep.blogspot.com/search/label/MFH G1-GTR
The last entry is a comparison between MFH and Aoshima. As I see it, MFH builds almost like a real car, but on a shelf its all the same.