I've purchased a few different SFF cases recently. I've done a few builds in the NR200 series cases, and most recently I re-did my main rig in a Dan A4-H2O, which i really like. However, I wanted something a little smaller and lighter for work travel and LAN play. I tried the Velka 7 and ended up with a bad riser cable... Ahead of tomorrow's work trip, I decided to take a chance on this case. Got same day delivery. And this case... Man, am I impressed...The value equation here is pretty outstanding. The price point for what you're getting is very reasonable. You're getting an 8 liter SFF case that is very easy to build in, as SFF cases go. The layout is well thought out, leaving me with only minor criticisms. The fit and finish are good, and appears to be powdercoated. We will see how the finish holds up over time. You're also getting what appears to be a decent riser cable (says made in Germany).The Cooler Master NR200 is a great case, but is over twice the size of the S300 in volume. The Velka 7 is over twice the price, and isn't visibly much smaller. The Velka 7 is also a much larger pain to disassemble and build in, with its tons of screws. The S300 really shines here. The layout and design are good, and I had mine finished in under an hour. I'm an experienced builder, but even a first-timer would have an easier experience building in this case than others.One thing I love is that there's often enough room in the bottom of this case for a 15mm slim intake fan. Just take your time and be methodical about the order of assembly when it comes to all the components. The manufacturer's video can help with that. Take your time, and be gentle with the cables when cable managing.Also do your research on CPU Cooler fitment, both for your motherboard and for the case. I opted for the 47mm tall ID-Cooling IS-47, which uses a 92mm fan. I replaced the included fan with a Scythe RGB fan. It cools my Core i5 12400 pretty well, and I think that's an ideal type of CPU for this case. I'd personally avoid K series CPUs completely because of their higher TDP (and by proxy, more heat). Stick with a modern i3 or low end i5, as they don't consume tons of power. With my Cooler and CPU setup, I see gaming loads in the high 50⁰s.Be sure to pick a GPU that will fit the case. In this instance, I opted for a 3060 Ti because of its size and heat dissipation ability. It pairs well with a 12400. Personally, I wouldn't go over a 3070 in this case, assuming you pick one that fits. Anything beefier, and it will use more power, which means more heat. You'll also have a problem finding any 3070 Ti and above that will fit in the length and thickness dimensions. I would probably avoid Founders cards for this case too. The blow-through design will not work well here.I tried both an EVGA 3060 Ti XC (2-fan) and a Gigabyte 3060 Ti Gaming OC (3-fan), and here's my thoughts. The EVGA XC fills less space which does leave a larger air well inside the case, but it looks incomplete. The Gigabyte OC has a blow-through design for the end fan (similar to Founders), and I do think that inhibits cooling performance in this S300 case. That said, I was able to get both cards gaming in the 58-65⁰C range, and 15 minute benchmark loads seem to max out at 73⁰C -- very respectable for an SFF case. The Gigabyte card is slightly louder, and I did downclock it 75 MHz to 3060 Ti stock clocks which helped with noise and temps a bit. The 3-fan Gigabyte card adds some extra RGB and fills the case nicely, so it's my obvious choice. People love how small the rig is, and having essentially a full length GPU in there.I used a Lian Li 750W SFX power supply, which I highly recommend in these smaller cases over an SFX-L. The cables are individually sleeved too.I opted to remove the case's carry handle. You might like it, but I don't. It's held in with two Phillips screws from the inside, and comes off easily. I bought a cheap DSLR backpack to move this PC around with, so the unsightly carry handle isnt needed.The front IO works really well so far, as well, and I love the front IO placement. I can absolutely recommend this no-name S300 case based on my first impressions and a few outings. You can really put something cool together, for not a lot of money. It could easily demolish a laptop, while making a lot less fan noise.EDIT: I have since upgraded to an RTX 4070, which creates almost identical thermals and uses the same amount of power as my 3060 Ti. I normally wouldn't recommend the 4070, because of its poor value equation, but in this case, it really shines.The case says it's can hold a GPU 305mm long. My MSI 4070 Ventus is 308mm long and fits, albeit very snugly. I had to take the chassis apart to install it (this card visible in last photo). I've used both Gigabyte Eagle and MSI Ventus 4070 with similar thermals and performance levels.I'm still in love with this case, and totally happy I was an early adopter!