Like I said, Ren ............. I've done my research and for my small lounge, 43" is actually 3" more than the recommended viewing screen.
Believe me, 49" would look slightly ridiculous, I've even gone to the trouble of cutting a template out of cardboard to see what it would look like.
You may have gleaned from my posts on this forum, I'm far from anal about these things. If the picture is better than our current one (which it is, hands down), then I (or should I say, we), are more than happy with it. I'll probably only use 25-50% of it's 'Smart' capability as well ......
Different strokes for different folks, I think the saying goes, my friend ??