Yes, I agree your comment, because I had GT3 before, and I sort of upgrade to GT3B and I found some of function disappear in GT3B, example like the curve of throttle is no longer adjustable.....etc. But I still prefer GT3B,s compact size and big display with back light.
Honestly, I would buy this rather than those low model well known brand like fuxxba. Because it is cheap and do the same job. Also my old GT3 never let me down as reliable as those well known brand. Of cause, if you want more adjustment and high power output, you need something better than this. Therefore I have M11x for serious race.
Hope my comment can help your curious.