Yeah its a fun little game with some great images that you may have noticed are even being used in the games themselves now, meaning the developers take New Wave seriously and you should all start playing to see the best images they can offer.
Sure its tough to get the good stuff, the event SR and UR are a distant dream to those who dont use money, but it can be done so dont give up! Its all about chance really (which I like)
Overall its a nice way to pass a bus journey or a boring lecture or even a lunch break.
The new update is looking good and may offer a better chance ratio of getting the good stuff.
And who knows, if you put sone effort in and get lucky maybe you could even surpass the great Ryouna.