Is the Aegean miles purchase miles offer any good for Star Alliance flights in First/Business class?

I received an email today from aegean regarding purchasing miles. you can now purchase 50,000 miles for 1250 euro per calendar year. has anyone booked using these miles a star alliance partner flight in first or business

It is a little out of date from 2014 but should give some good ideas


Easter Island being in Oceania might pose some interesting options if you can find the routing and seats.