If you've played Second or Final Coil pre-Echo, all of the stuff in Alex is going to be faceroll content. For people who are new to raiding or can't raid on a schedule, Alex NM is honestly a decent entry point - the fact that it's solo queuable in DF seems almost a deliberate design to draw in players who wouldn't normally raid. The mechanics aren't terribly punishing as a whole but a few core (and easy to screw up) items are very, very difficult to recover from, and the fights themselves have (or teach) interesting dynamics that entry raiders need to know.

DFing this stuff is going to be very hit or miss once the Big Deal raiders move on, and when you're running at the front of the pack it's easy to forget that there are players behind you not anywhere near as skilled as the prog raiders already farming for their armor pieces in preparation for Savage.