I'm gonna be honest, I was not expecting much when I purchased this. I was worried and researched endlessly for a grinder that fit our budget AND could grind my wheat berries into usable flour for my sourdough bread. I wanted hand crank because it will never fail unless my arms fail, but I feared my arms would fail if I had to grind for hours to get enough flour for a loaf.So maybe my previous negative bias is making this grinder seem even better than it is. I mean, I have had ground meat, nuts, and other sundries with the old cast iron grinders in the past. And boy, was that a chore!So when I set up this new grinder and started grinding rice to prep it for flour, I was bracing myself to hate it. 15 minutes later I had a relatively fine grind of rice that actually amazed me.When I moved on to my precious wheat berries, I found I could roughly grind 2 cups in about 15 minutes, then tighten the burrs for a fine powder and finish a fine flour in another 20 minutes or so.The first time I used it I attached it to an antique Hoosier hutch and it did not scratch the wood surface despite all the wobbling. Since then I have found a way to attach it to our kitchen island, just in case it starts scratching surfaces with wear. So far so good.As for the flour... I have baked 4-5 loaves of sourdough with it so far and they are wonderful. Mind you, a lot of that is wheat quality, etc but I have noticed no major issues with coarse flour, chunkiness, heaviness... Also, I am not as fit as I once was, so I expected this to be a bit brutal, but I have found that I enjoy grinding my grain when I have the extra time. Its a light workout depending on how much you need to grind, but certainly nothing terribly fatiguing, even for a middle aged, somewhat overweight woman. ? If I can do it, so can you! Promise. All you need is a bit of patience and a good book or podcast to entertain you.Finally, a bit of advice... 1. Don't fill the hopper all the way. Just add enough grain to fill the grinding area and continue trickling it in. The more full the hopper, the tougher it is to grind. 2. If you want fine flour, don't try to grind it fine right away. Run the grains thru on a loose/coarse grind first to break them up a bit (see my pic), then run the coarse ground wheat thru the mill set to fine grind. And voilà! Beautiful, healthy, delish flour!I am so pleasantly surprised by this little grinder that I really did want to share with others who may also have their doubts. If you want to bake a little bread from home-ground flour, this is an excellent machine. I wouldn't want to grind more than 1000 grams or so in a day, but thats enough for a few loaves of bread for many basic recipes. It is easy to use, effective and affordable. I definitely recommend! *Note: I haven't yet ground anything but rice and whole wheat in it, so I can't speak to spices, flax, etc. I can't imagine it will do a bad job with those either tho.