Hi there. Been playing around with this mod for about a week, and I have some thoughts from what I've experienced so far.
The OP post doesn't do an amazing job of explaining the mod in more detail. I feel like I've had to discover most of it via trial and error in-game, and asking folks over on Discord about specific mechanics.
No ship list? It's been quite the process trying to figure out what mechs and ships the mod offer, and digging through ship lists in the console and seeing what sticks. The same applies to cross-mod content such as the Iron Shell mech, which I only know of thanks to Lion's video on IS in the first place (and what drew me to this mod blind)
There's not a ton of direction beyond "go to the new system, speak to people", and I feel like this mod could use a bit more in this regard. I did eventually manage to figure out that there's a questline to help retake the jungle planet, but my fleet wasn't up to the task of doing the in-atmos followup missions at the time.
Hidden subfactions don't play well with some other mods like AOTD. I would have loved to have been able to be commissioned, instead of having to do so with another major faction to help pay for my upkeep.
The Wingcom hullmod system feels... odd. I was going into it assuming I could pilot a Mech ship and be a squadron leader, but instead I have to sit back on the carrier instead? I would love it if you could create a squadron and assign a leader officer specifically, instead of needing it to be the ship's officer.
Hullmods tied to specific carrier ships - With the largest carrier in the mod being a Cruiser, I feel like not being able to unlock the recall ability on other ships is very unfortunate. I would have loved to field a capital ship carrier with this ability (maybe even a size dictated cooldown, so you won't feel like you're losing out by fielding a larger carrier, rather than multiple ones)
I'd love to see more freedom in Mech loadouts. Most of them are very locked into pre-designed weapons, and having a frame variant with slots and more points to spend creatively would be amazing.