After getting my first look at the seemingly sealed-off case front panel used for the Magnus Spark, I was definitely a bit apprehensive about thermal performance of the core components. As it turns out, I needn't have worried, as the CPU ran no hotter than 58C on the package when hit with a 30-minute Cinebench R23 stress test, and it ran about 10C cooler while gaming too.
The RX 6600 is also perfectly fine, with the GPU temperature peaking at 61C, while the hotspot only hit 73C, so there's absolutely nothing to worry about there. I still wouldn't say airflow is going to be ideal with this case, but considering that PCSpecialist has used two of the most power efficient products released over the last 12 months, they can get away with it.
Fan speed is also very innocuous. The system emits a very quiet hum when idling, but it doesn't get much louder when under load. You could comfortably drown out the fan noise with a small pair of speakers, and you definitely wouldn't hear a thing if using a gaming headset.
Lastly, power draw is nice and low for the Magnus Spark, hitting just 210W while playing Cyberpunk at 1080p. This figure could rise slightly depending on how CPU-heavy the games you play are, but Cyberpunk isn't light on the CPU and power draw is still very low. This leaves plenty of headroom to swap out the GPU down the line, with the likes of an RX 6700 XT or RTX 3070 being potential drop-in upgrade candidates.