I don’t see a problem with it. Their worship is amazing. As long as you also go to mass on the weekends as well, most shouldn’t have issues.
If you love it so much, you can also listen to it online. Family Christian WGTS 91.9, K-love, Chennai Christian radio are just a few radio stations that you can listen to online either directly through their websites or on the radio section of ITunes. You can also purchase the music on iTunes and music stores as well.
If you really enjoy it, ask your diocese if they have any charismatic Catholic churches. Very often this type of music is sung during the mass.
Hope this helps,
SG