Is the Siskiu T6E good for beginners?

Yes, if you want a capable all-mountain e-bike. The motor helps on climbs and the full suspension is forgiving, but the weight takes some getting used to.

What kind of riding is it built for?

Trail and all-mountain riding. The 140mm rear and 150mm front travel handle rough descents, and the motor makes long climbs easier.

How does it compare with a non-assisted trail bike?

It is heavier and needs charging, but the motor lets you climb terrain you would otherwise walk. Descending performance is close to a comparable trail bike.

What motor does it use?

A Shimano EP6 mid-drive motor. It is part of Shimano's e-bike system, so batteries, displays and service are widely supported.

How long does the battery last?

It depends on assist mode and terrain. Expect shorter range on steep, sustained climbs in high assist and longer range on rolling trails in low assist.