[OldSam]

Starting with the Machine Meta-Trait is definitely a good idea, you already invested 25 CP at that point. How much CP can you spend for the character? Buying a bunch of Innate Attacks and special machine Advantages won't be cheap...

The player should probably focus on some specific advantages, because the general idea to be a humanoid robot usually includes too many points, being very strong, very intelligent (with digital mind), having special robot weapons etc. And even more important: The player should point out what are the <weaknesses> of that char, being a powerful robot char usually means getting a lot of disadvantages to pay the bill for the cool features.
Also that makes the char more interesting and fun to play, because these weaknesses are an important part of creating a team member, giving others the opportunity to fill out the gaps.

E.g. one fun idea could be something like: No Fine Manipulators [-30] : The robot - as a combat system - is not designed for fine work like using human tools, repairing things etc., so it has only quite rough gripping devices to lift or hold something.

Also 'Reprogrammable' is a classic robot disadvantage for example, giving you as the GM a plot hook to exploit that once in a while... ;) E.g. when the player accesses a network, database, other machines/devices, at some point there will be a virus infection, forcing a 'maintenance reboot' at a later time or so... ;)