It is said that if, on a set of company accounts, you see a mistake on page one don't bother looking at the last page - the mistake will have grown.
And so it is with the download of Rachmaninoff op. 21 no. 6 [Otryvok in C sharp minor], the second beat of the third bar, left hand, is the dominant chord and shows B natural not sharp [!]. Bar 6, third beat, an unnecessary # against the F [it's in the key signature]. Bar 7, two arpeggios on F# minor, # is showing on each bottom note, bar 8 has a chord with a random unnecessary F#...I could go on - but I never looked any further...too cross!
I suggest that anyone looking for a download should have a good look before buying...but you can see the first page only!
I have not shown proof of purchase as it shows too many personal details