Reviews from Japanese publications:

+ Conversations between you and the girl are interesting
+ Design and personalities of the girls are enjoyable
+ Large variety of clothing and items
- Long loading times
Famitsu's review was on the average side:

Complaints were also mainly on the long loading times, but the game was found to be difficult as well if you didn't know what you were doing. A couple of reviewers commented on the gameplay and said it was repetitive.
I guess Dream Club is like IM@S: a niche title that will appeal to some people but not everyone.