I just downloaded it but my wife wants to watch TV for a while so I can't play for a bit.
Edit: There is potential. I got it to boot and somewhat work. The trick to get it working on the Wii for me was to insert a real GC disc in the drive. When I tried booting an ISO without a disk in it would tell me the tray was open. I put a Wii disc in the drive and it would load the ISO and freeze at 33% then give me an error. Next I tried a GC backup and it would also freeze at 33% and give me an error. Then for the hell of it I tried a blank DVD-R and it told me there was no disc in after thrashing around for a while. Finally I put a real CG mini disc in and it would allow me to boot ISOs from the SD Gecko. Winnie the Pooh's Rumbly Tumbly Adventure to be exact. I haven't played around much and have only tried two images. My initial findings...Lego Star Wars II: The Original Trilogy black screens and freezes requiring hard reboot. Blood Omen 2: Legacy of Kain booted to the create save game screen. My Gecko was in slot B and I didn't have a memory card in at first. When it said no memory card detected I told it to continue without saving...Black screen and hard reboot. I tried again with a memory card in slot A and my Gecko in B and got the same results. So there is definitely potential. At least I got a game to boot somewhat.