The Gibson SG Classic has a heritage cherry finish that looks amazing and feels well built in your hands. It features dual P90 pickups that give great clean and crunchy sounds.
The neck binding also makes this guitar sound and play as well as many guitars that cost twice as much. Its solid mahogany body provides incredible resonance and tone.
This guitar is especially suitable for players of the classic rock genre, though it's versatile enough to be used by almost any kind of player.
As far as reliability go the very mention of the name "Gibson" should silence any fears of this instrument failing you on stage. It stays in tune and will sound great before, during and after your gig.
Here's a video review of the SG classic played with a Ibanez Tube Screamer Pedal and a Fender Blues Junior Amp: