Firstly, I experimented with it a great deal. I put two rolls of Tmax 320 B&W through it, shot all types of scenes. Then I shot another roll of ISO 400 color Fujifilm and one ISO 800 color Fujifilm as well. Now, there is something about a crude camera box and you and getting a good shot. It is really all about composition and light (I might add here that I completely messed up my roll of ISO 800 (zilt, nadah, is all I can say about that roll - shot inside a church in dim light, I totally underexposed the roll, forgot that the least I could have done was held down the button longer). Having to adjust to seeing everything in a square format is actually a rather refreshing experience coming from 35mm - I can also see how some shots are better suited for square format than others.
The fun part:
No. 1 - there is definitely light leak and I think I know where mine is coming from. I could tape it but that would take away the element of surprise. The vignetting is actually rather nice.
No. 2 - double exposing the same frame twice is so easy that if one is not careful, that becomes second nature. Well, unless you messed up so bad that you tie a little string around your index finger to remind youself to wind the film before you click that shutter again. I have one too many shots to prove how easy that is - however to my solace, it led to rather pleasant and unique results - see below. I was trying to figure out where I had taken that strange shot and then I realized it was two shots in one....
No. 3 - one definitely looks more inconspicious to others with this little cheap plastic camera than with a big Canon 5D and zoom lens. Theoretically, that means you are more likely to get the shots you want :) The shot below is a case in point.
Finally, as there is no way to control shutter speed but Bulb or N (is that 1/125? 1/250? that in itself is another mystery). Hence, the only way one could ever use it in dim light even with high speed film is the B setting on tripod, or hold down the shutter and time it yourself... that surely will contribute to even more unpredictable results if you get any at all...but I can see me testing that out....
Holga is cheap way to have a go at medium format. The camera is dirt cheap, the only expense is development and printing. The depth and clarity to me is still way better than similar shots on my 10D, may be I am biased.... but I think you would agree.
I did a little write up on Holgas and where you could get one cheaply... see link:
Holga's - the cult following
Also if you are looking for a decent place to host your photos, check out Smugmug FREE Trial SmugMug
or the Smugmug banner on my blog. I am hosting my photos there after researching and checking out a few options. I opted for the $59.99 unlimited gallery/photos package and I really like the fact that I have "Right Click Protect" and I could disable Printing option selectively, both are important features to me. I went for 14 day Free Trial before I took the plunge :) I would strongly recommend that.
Have fun !!