Is full suspension worth it over a hardtail?

Yes if you ride rocky, rooty descents and want more control and comfort. A hardtail is lighter and climbs better, so pick that if your trails are smooth or you race cross-country.

Are 29-inch wheels right for me?

29ers roll over obstacles better and hold speed, which suits taller riders and rough terrain. Smaller wheels turn quicker in tight, technical trails.

What kind of riding is it built for?

Trail and off-road riding, from flowy singletrack to rocky descents. It is not a downhill or enduro race bike, and the suspension travel is aimed at general trail use.

Does the rear shock have a lockout?

The description does not specify a lockout. Without one, expect some pedal bob on climbs; check the shock model before buying if efficient climbing matters to you.

How much maintenance does it need?

More than a hardtail. The rear shock, pivots and bearings need regular checks, and the suspension should be serviced on a schedule to keep it working well.