I wasn't expecting much but I got a key from G2A too. I'm 10 hours in since Friday and I must say, this is a true successor to Wasteland and Fallout 1/2. There are some issues, the graphics are poor, the camera can be a pain, the itemization is basic but the qualities make up for them.
1. Skills, attributes and levels. Almost all skills are often used and doing so always grants experience. You can use Surgeon to release people from vines, classical dialogue interactions (intimidate, sweet talk) are everywhere, you can even remove herbs from a lab using Outdoorsman. It's absolutely mandatory for your starting characters + recruits to cover as many noncombat skills as possible.
2. The story and the impact of choices. I'm not too far in the game but I've already made a choice which dramatically changed the scenery. I gained access to a location, a recruitable NPC and a few other things and I lost access to another location, along with whatever was in it. If I play the game again, I have another route to explore.
3. The combat, while basic at first glance, is more complex than I expected. Action Points are crucial but Combat Initiative can be even more important, you always have to consider the other when choosing one of these two characteristics. The enemies follow the same rules as you do and they can have the same vulnerabilites/strengths. There's not much AI as far as I can tell as the encounters are mostly scripted but it has yet to bore so far. While lacking the complexity of Original Sin, the combat is straight out of the Wasteland/Fallout textbooks, with quite a few improvements, which I enjoyed.
4. Exploration. The graphics may be poor (the engine is at fault, not the art style) but the maps were create with attention to details, they don't feel generic at all. I believe I've spent more time exploring, opening doors, safes, disarming traps and alarms than dialogue + combat in total.
Overall, this is a good game, a modern Fallout 1/2 with much of the same "feel" and gameplay. Unfortunately, it's one of those games that isn't good at selling itself because of some odd developer choices, particularly the engine.