The Trek Marlin 7 is a very good mountain bike for the beginner to intermediate category, especially for trail riding. Here is a simplified explanation to help you know if it's worth it:
Trail-ready geometry
Gives you stability and confidence while riding on rough terrain, not just paved roads.
• RockShox front suspension system
Helps absorb shocks from rocks and bumps, making the ride more comfortable and controlled.
• SRAM NX Eagle (12-speed) gear system
• Wide range of gears → Makes climbing and speed on flat roads easier
• Smooth gear changes compared to cheaper systems
• Trek quality
A well-known company for frame durability and manufacturing quality.