One of the orchestras I'm in tried to use Igor's version of the Strauss Oboe Concerto.
The short and polite version is there are far too many errors and omissions to be worth the download. Save your bandwidth.
The long version: the parts have missing/incorrect/extraneous notes, missing/inappropriate/extraneous/incorrect phrasing, articulation markings, tempi, etc. This is based on an examination of the parts and comparison with a known correct conductor's score. For example, the composer did not provide tempi by metronome markings, only verbal indications.
To the moderators: While Igor probably disagrees with this post, it isn't defamation in Canada. Two of the legal requirements are the material must be known to be both false AND malicious.
Igor's parts for Strauss Oboe Concerto
Moderator: kcleung