I’m a resident Dj at a lounge myself. Yes it’s different then a club, but it’s still a gig, I don’t look down on any gig, you’re sitill responsible for the music, and if you screw up people will notice. It still presents challenges, IHMO the mix in a lounge should be even smoother then in the club, and yes, creating an atmosphere is different then the energy level, but for me it’s a challenge all the same albeit of a different kind. And all experience is never bad. It also may help you in the longer term by scoring additional gigs, and it’s always cool having the name ‘resident Dj’ on your resume 😉 So I would just go for it 🙂