I hatched my 3rd clutch of chicken eggs (largefowl Ameraucana) in this incubator. The automatic turner can hold up to 9 eggs, but being the aspiring (and new) chicken breeder I am, I wanted more. 9 is great if you're a beginner, and automatic turning is great if you don't have the time. But I do not mind hand-turning, which means I was able to fit 12 (and then 13 - we'll get to that later) large chicken eggs in it comfortably. Note, I have a second set of eggs in the incubator, I was able to fit 17 with a large third-party thermometer in there that probably took up the space for about 3 eggs. I think you could fit 18 max, and it would be a bit of a tight fit, but I believe enough room for the chicks to hatch. I don't know that I would advise this, though! Anyway, back to my original point: PLEASE NOTE, I cannot speak for the egg turner, as I have not and do not intend to use it. Keep that in mind while you continue reading.Ok, I love this incubator. My third hatch, I had a 75% hatch rate! The two remaining chicks that did not hatch, I believe were due to self-errors of humidity control. Now, let's go through the pros and cons.PROS: 1.This was super easy to use. Put your tray in, plug the incubator in, set your temperature, add your water, and set your eggs! No real assembly. Tip: if you are going to manually turn like me, I recommend using the second "hatching tray". It is much lower to the incubator's floor, in comparison to the first tray, whose only purpose is to bring the height of the eggs close enough to the top of the machine so that the egg turner can work. I used the first, and then lazily did not switch to the second, because who has time to move out-and-then-in 12 eggs? The chicks were a little too close to the ceiling of the bator, but thankfully the manufacturer put a grate to protect the chicks from the heating unit, and vice-versa!2. Plastic, which means easy cleaning!3. Small and light weight, which means I can have it in my office without it taking up too much space.4. Although it's small, it holds a decent amount of eggs for a beginner. 9 eggs is great, but it can also be 12 eggs!5. The manual is pretty straight forward in my opinion, the only real thing you have to do it place the grate correctly and match up the egg-turner to the metal rod from the top of the bator.CONS: 1. The incubator trays are a slick plastic, and seem to be on a tilt. When chicks hatch, they need a textured surface to walk on, as they need to get their footing and begin exercising their baby legs! If they cannot get their footing, they can develope spraddle leg, or splayed legs. This will mean the chick is a temporary "special needs" chick, and she will need some focused attention and spraddle-leg remedy knowlege from you! With my second clutch, I put down a single paper towel with holes in it, to allow the water in the bottom of the incubator to evaporate and rise.2. The setup for humidity is not a great one. This was especially a con for my situation, which was that I had an incubator go haywire and kill all but one of my eggs. I placed that last egg in this bator, and it was about 5 days behind the eggs already in it. The reason this is such a con for a staggered hatch is that, when the first chicks hatch, they leave nasty gunk in the water, especially if you leave them in there for a while so as to not disturb the humidity for the unhatched chicks. If the waste from the egg and chicks is allowed to sit long enough, it can cause a nasty bacteria overgrowth, which can lead to infection and fatality of your still-developing embryos. Fortunately, this did not happen for me, the chick hatched out fine 5 days later. I also took out my chicks no later than 24 hours post-hatch.3. The temperature only displays celsius. Not a huge deal, but it'd be nice to just know the temp without converting!4. This thing had a bit of a smell the first time I fired it up. It went away after about 24 hours. Hopefully nothing too bad!5. Bator is pretty sensitive to humidity. I noticed it doesn't take much water at all the get the incubator to the right temp. Now, I do live in Georgia, and it is rainy on/off currently, but even with that, it could fluctuate to as low as 30%, and then when adding a small amount of water it jumps to 60%. (This is based off of my third party thermometer, an Acurite wireless indoor/outdoor thermometer/hygrometer combo)Final thoughts: Overall, I really like this incubator! It worked great for its intended purpose. A few cons that can be solved by adjusting somethings within the bator, and not setting up embryos for infection by avoiding staggered hatches in this bator. I don't like that it gets the water so nasty, perhaps a third, separator tray could be added to catch egg/chick waste, while keeping water clean. I am still very happy with this purchase, the price point is fantastic for what it is. I'm always leary to buy from unheard of manufacturers for an incubator, but this brand impressed me!