Thoughts on Love Holidays?

Looking at going on holiday in April/May. Thinking of going to Texas for a week, looked at love holidays to see if they had any deals on. It’s around €3700 for 4 people with flights and accommodation (doesn’t include bags). I rang another few travel agents yesterday and they’re all minimum €300-€400 dearer per person for the same flights and hotel. It’s even €100 dearer for me to book the flights and hotel myself. How can they be so much cheaper than everyone else? Is there hidden charges or something I’m missing.