It depends how accurate you want it to be, though I'm sure it will more than suffice if you haven't been playing piano that long.
There are no wrong notes/chords that I spotted, and the rhythm's pretty much spot-on (except for the odd moment where the transcriber tries to accomodate the looser sections by using bars of 1/4...). But a lot of the sections are slightly simplified or stripped down versions of what Freddie actually plays - bass notes are omitted, chord voicings are not quite right, and some chords have the 7ths missed out etc.
But it will sound good, as it's harmonically and rhythmically correct. But it could sound even better...
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