Noticable differences between rendering engines for what? Sometimes type can be janky, but no moreso than in html/css, and in SVG you're generally turning type into vector outlines. For graphics rendering, it's completely accurate in any environment I've used it in, and that's working with very very fussy brands.
Same screen, same zoom levels. Viewbox properly set, height/width set, confirmed compliant units. Switching between img/object would get it unblurry but then lose the embedded image data. Switching to inline-svg would in turn get the image data working but the drop shadow was completely broken.
