The mood was great, I jumped the first playthrough when I got attacked, and the second one I was creeping around (even though I knew I couldn't get attacked since I didn't pick up any candles), hugging the wall to find my way. It felt a lot like being in a real labyrinth. The sniffing sound especially was great.
Game mechanics-wise, the candles were definitely just a hindrance, the strat is to use the map to find your way and squint since it's still possible to see even without the candle. It might be interesting if instead of having candles, the map opening made a crinkling / folding noise that would alert the monster if you're too close? Especially if you had more control, somehow, over when the map opens.
Overall, really enjoyed it, the mood was top-notch :-) Made me jump, and I usually don't like horror games.