R2 Event was the best Event compaired with Yoda and EP.
Loved him, since the Phönix event, where I could battle him the first time.
My troops were not ready for 5*, but I had a 4* Snowtrooper laying around. (Stopped him after reading he is(now: was) not good at all). No Zeta at all.
Since I had 7*Vader, RG 5*EP, Tarkin and 3*TIE
I know from that time on, that the max target would be 5*. (It takes a month, for me, to get a new Trooper up to gear, mods and lvl for battle)
Getting Snowtrooper up to 5* was quicker as TIE. Got enough guild coins (thanks gilde 'Zukunft') and time to finish him. I had 6 days as a reserve. I saved 7 mil, 15 Omegas as a last Reserve just in case.
The event was great. I enjoyed every round fighting my way towardes the Rebels camp. Last fight was hard, but fair. Did not need to use any of the reserve at all.
R2 is now geared 8, lvl 65 and is compliting speed mod. Had his first battle in GW node 12 - now he is battle proved and gave me lots of confidence how to handle him.
Also R2+Yoda is acting as a zQGJ for poor(Zetaless) people:
1) R2 gives foresight to Yoda and stealth to the rest
2) Yoda gives foresight and tenacy to the team
Result: Everyone has at least foresight (like zQGJ) and tenacy up.
Conclusion: I will always think back: as a very usefull lvl85 gift. 5 star (rating) :-)