Review for Mystic Lake Casino Hotel Review For Diamond Jim's Casino Google User Apr 14 '18 at 1:59 I have been going to diamond Jim's for over 8 years and have found the staff are always polite and professional. The food is excellent and prices are fair. Jake the manager always listen to customers and their concerns and makes fair and sound judgement on issues. Cliff the tournament manager does a great job. I play tournament often, the speaker over table one needs to be turned down or the person useing the pa systems should talk in normal voice. The speaker is way too loud. Overall great place for dining and gambling. View full site to comment or like