I picked up the Beginner box-set at a local hobby-shop; it's OK; I was expecting more since, I bought the original box-sets (Battltech and two Citytechs (and even Aerotech)). I like the double-sided map. Yes, the originals, and a clean white hex-map on the back, expecting use to draw our own maps, but we never did. I like the counters; they seem more durable, but there wasn't as much and, the plastic-mechs are nice, but I do have a file-box full of miniatures, most aren't painted. It didn't come with dice, but I'm not going to cry about that as I have tons of d6s.
I went to Barnes and Nobles to check out their RPG-section (only D&D5e and Pathfinder, sigh, ); in the boxed-game section, they did have Battletech Inner-sphere and Battletech: Clan Invasion, which look interesting, but do I really want to rebuy all the Battletech stuff I already have (A friend gave me Reinforcements II, so I have Clan Mech-counters).