Wow! During each replay, this mini album sounds better to me!

Also on headphones, I think the recording sounds surprising.
I think 'Arnold Layne', 'Take Thy Stethoscope and Walk' and even some 'Interstellar Overdrive' are historically clearly connected with sounds that can be heard on 'Pink Floyd 1965'.
The '1965' release remembers me of how awkwardly surprised I was by hearing the garage rock style of 'Arnold Layne' (1967) after hearing the more psychedelic albums 'The Piper at the Gates of Dawn' (1967) and 'A Saucerful of Secrets' (1968).
'Arnold Layne' and it's B-side 'Candy and a Currant Bun' are basically garage rock with a more prominent psychedelic layer than on 'Pink Floyd 1965'.
For example, I think Wright's dreamy keyboard instrumental in 'Butterfly' is an embryo of his keyboard instrumental in 'Arnold Layne'.
'Remember Me' has an instrumental section that sounds to me like an embryo of the instrumental section of 'Take Thy Stethoscope and Walk'.
For a low-budget demo recording, I think the sound quality is remarkably professional.
I think the recording and its commercial value mostly suffer from the master tapes apparently being lost.
I guess most of the restoring went into having to use inferior copies of lost masters.
The book 'Barrett' (2011) contains information on this recording project, done in a "West Hampstead recording studio".
In a January/February 1965 letter, quoted on page 153, Barrett writes:
I'll tell you everything that happened at the recording. We took all the gear into the studio which was lit by horrid white lights, and covered with wires and microphones. Rog [Waters] had his amp behind a screen and Nicky [Mason] was also screened off, and after a little bit of chat we tested everything for balance, and then recorded five numbers more or less straight off; but only the guitars and drums. We're going to add all the singing and piano etc. next Wednesday. The tracks sound terrific so far, especially 'King Bee'.
About the session "next Wednesday", Barrett continues:
When I sing I have to stand in the middle of the studio with earphones on, and everyone else watches from the other room, and I can't see them at all but they can all see me. Also I can only just hear what I'm singing
Note that Barrett mentions recording "five numbers more or less straight off".
If he's not miscounting, then what about the sixth?
'Pink Floyd 1965' is growing on me.

I just hope this release won't turn out to have negative surprises like duration edits being made.
Otherwise, I give it 5 stars out of 5!