Yeah, used it few months ago. It is a LH lounge. with one side for *G and other for First class. I have been to this lounge few times, but everytime the first class part was closed. i guess I went to the lounge after the last LH flight had left. I was flying turkish the last 2 times i was there.

a decent lounge - good open bar. not too many options, but free/self pour

food was there (also late in the night). had nice chicken tikka and biryani. also saw some sandwich spread. but that didnt look too appealing.

furthere there were some cheese/chips options.

if you have *G card, and are flying *A, you can easily enter the lounge. you do not need a invitation. just show ur card and enter