Are first class train tickets to Ella worth it.

The only reason to book first class is if you desperately need air conditioning or if you want to avoid the noise and bustle, as second class carriages tend to get very lively with locals singing and vendors walking through.

Second class reserved is universally considered the best option. You get a guaranteed, comfortable seat, but the windows open completely wide. This allows you to stick your camera out and feel the cool mountain breeze throughout the journey.