I just got my Aegis X Classic Silver today. I also have 5 Aegis OG 100W and 3 Aegis Legend mods all purchased in 2018 and all of them are still looking like new and doing well. My second Aegis X might be here as early as tomorrow.
My only complaint about my earlier Aegis mods was the TC. They worked most of the time but sometimes they didn't. The OG would sometimes start out about 60°F too low and then swing up to 50°F too high and then settle on the correct temperature. The Legend would sometimes blast something like 700°F out of the blue. Which would toast the coil for good. The Aegis X promises that the TC is much better than ever. Gee I hope so.
Currently I have a 0.15Ω Ni200 Triton coil in an Atlantis EVO tank. So far the TC is stable as a rock. Although it seems to me about 40-50°F hotter than the setting. So 390°F seems more like vaping at 440°F to me. Letting the coil cool down overnight might get it to read the resistance a tad lower than it is right now and that could make it right on the money.
No reviewer ever mentioned this, but I also love the 4 digit puff counter. Previous Aegis only had a 3 digit counter. A three digit counter is good to see how well your batteries are lasting compared to other mods. As I don't think you will ever hit 999 puffs on a single charge on any mod. Right now I have 251 puffs and four out of the six battery bars are still lit. That would mean I have about 60% charge left. If the battery voltage is higher than 3.7v right now, that is incredible. Here let me check them... one is 3.86v and the other 3.87v. OMG that is fantastic battery life!
Now a 4 digit puff counter is really handy for seeing how long your coils are lasting. For example, if you hit 8000 puffs on the same coil, you are doing really good. Many of my favorite coils can hit this mark without flavoring suffering very much. I also keep track of how much juice went through a coil too. And 8000 puffs is usually around 100ml of juice through the coil for coils like Atlantis coils. My FreeMax Mesh Pro coils hit 100ml at around 4500 puffs. But I run them at lower wattage than most. So most will go through 100ml much sooner.
I'll be playing with this more and the other one coming soon. I'll mention anything new I find. So far these are really great mods. Also this post was a bump, so this thread won't get locked.