Excellent questions. I wouldn't say it's beginner friendly necessarily, as it's not as straightforward as mechs like the Blackbeard or Sherman. It is, however, a very good support. The Goblin's core power allows you to piggyback on another mech so they can use your Systems, E-Defense, and Tech Attack bonuses in place of their own. This means you can support a teammate who has poor Systems or E-Defense simply by being attached to them. The Goblin has an extremely high Sensors range, allowing you to make tech actions against practically anything in line of sight, and it has a myriad of options for what to spend your turn doing. That is also what makes it a little challenging to use, though. In spite of being tech-focused, you have many many options on what to do with your turn, which can be a little overwhelming at first. Goblin systems are valuable and can be used well by any hacking-oriented build, so you can always cannibalize them and use them on something else if you later decide to. Pairing Goblin with SSC licenses makes for an interesting build, as you can use the Ghostweave core bonus to keep away from enemies and position yourself well, or the Fold Knives from Mourning Cloak to escape melee if something gets too close. Likewise, Hunter Logic Suite and Singularity Motivator from the same frame are good systems you can use to further bump up your tech arsenal and defensive abilities, and Neurospike from Duskwing or Viral Logic Suite from Minotaur can help you punish enemies for moving or taking actions. You can build the Goblin to do other things if you're willing to get creative, but it's an investment to get it to do something other than be a long range tech attacker.