I actually like the fact that astros aren't so good that they're an auto include. X-wings are totally fine without astros and I love that.
That being said they are still one of the more useful slots in 2.0, they are simply toned down to be like the rest of the slots in that they create options without being a necessity.
R2 astro - Regen plain and simple is still good. Particularly on run and gun ships like X-wings and E-wings. On an X-wing a shield upgrade is 6pts, and on an E-wing its 8pts. R2 easily proves its value there. R2-D2 is more efficient if you only need 1.
R3 astro - 2 locks for the price of 1 is pure economy. Mileage will vary depending your need for locks. If its on a ship that likes locks e.g. VTG Y-wings or the E-wing its worth it, especially at only 3pts. For the slower Y-wing it keeps the options open. For the faster E-wing it allows you to lock on round 1 and adjust or fake your approach without giving away a clear target. It's even ok on ARC-170s if you can line up the tail shot.
R4 astro - Its not as good as the rest, but it is the cheapest. It can be helpful if you have 2pts to spare. Not as useful on X-wing with their updated dial, but can free up the use of red actions on Y-wings and E-wings (linked) for pittance.
R5 astro - Being able to repair hull is really nice for those bulkier ships like the Y-wings, ARC-170s and Kimogila. At the price of an action this can be worth it especially with the added bonus of still being useful after the charges are spent. These new crits hurt. R5-D8 is more efficient if you only need 1.
Chopper - Looks good on Y-wings as they can simply reload the charges on bombs or torps that he eats for shields. He also has a place on ships without reload to recover some extra charges if need be. Chopper best attribute as he gives more than one option and can be used differently as the game progresses.
R5-TK - Is one I just see no value in. Attacking your own ships is just bad no matter the weird combo you may be able to set up.
Genius - Has its merits now that bombing has been moved to the systems phase. Especially for 0pts.
R5-P8 - Is ok.. Free re-rolls are always good, and a 1/8 chance to take damage isn't huge, but you will curse it if you do roll that crit.
