I love it but.... – Test Chamber - Mind-bending Puzzles Review

I love this game and I want to buy the whole game but I cannot justify paying $2.99 for 23 levels. There is a hint that more levels will be coming but I've been sold that by other games before and got shafted. Also, will this $2.99 be a one time purchase or will I have to pay again when a new level pack comes out? $1.99, to me would be more reasonable.
Review by Tss88 on Test Chamber - Mind-bending Puzzles.