Thought it was great:
You managed to pull a quite ambitious project out with flying colors!
The story worked very well IMO (in particular the way the main character tries to find a solution was quite witty and original: Reminds me of McGuiver...in space...) and the photography was fine too: the space part was believable and the back and forth between Space and Earth created an effective rhythm to the whole sequence (and the granny did an excellent job!). Music during the re-entry was quite effective too.
Also, I appreciated you opted for real sets (e.g. the spaceship) rather than overusing CGIs - as seems to be the norm nowadays. On the same line, I liked the "semi-retro" props (e.g. the spacesuit, the "shabby" satellite): it gives a fresh feel while keeping the film unpretentious and .. well just plain fun.
Yeah, well crafted and fun to watch: I hope you'll find an audience for this, it deserves it!
If I may ask, how long did it take you to complete this (pre-prod to end of shoot) and what was your budget?