Just installed using alpha 0.34. I've already mentioned the problem I've had with a user being created, but not having a home directory set up. I've managed to narrow it down a bit, which may help tracking the problem.
I have a 6 GB partition reserved for the alpha /. I also have a 42 GB partition that I use for home. During the install, I selected /dev/hda12 as /, selected xfs as the file system. Then selected /dev/hda7 as /home, selected not to format. Installed. Same problem - user exists, but there is no home directory for that user. I can fix it by logging in as root, removing the user with Vasm, then using Vasm to recreate the user. Not a good option....
As an experiment, I reinstalled 0.34, but this time only selected /dev/hda12 as root, and left /home to be part of the / partition. No problem with the user - created ok, and this time, the home directory has also been created and populated. I'm also getting the picture I selected as a login picture correctly, instead of the default image I was getting when home was on its own partition. This problem does not occur with the TUI installer, so there is something in the GUI which, while it picks up the /home partition and puts the correct entry for it into /etc/fstab, is not using it during the install.
Sound on this box is provided by an Intel IHC4 chipset. While sound is now being configured, it is coming through in Xfce as 'default' instead of the IHC4 option, which means that it doesn't work correctly without using the settings manager to change.
Those two problems are the only remaining ones for me in the GUI installer - everything else now seems to be working. Oh, sorry, with the exception of using the back button during install - that still stalls the process for me.