I'm quite happy with this quickstart guide, and I will most likely end up purchasing the full rulebook to continue playing.

As a system, I feel that Scarlet Heroes is great for what it's advertised: a 1v1, PC vs. GM adventure. It's simple enough to play quickly and easily (even if you don't have much experience with a D&D style system), and I can see how it would be easy to convert other D20-based content to Scarlet Heroes. It really mitigates the hazards of party-of-one combat, which can make the game easier for an inexperienced (or lazy) GM. I'm not super-excited about the built-in theme and world building, but that's personal taste, and it's easy to swap out for a different setting.

As a quickstart guide, it's very polished. Creating a character took just 20 minutes, and the included dungeon crawl, while very basic, should give you a chance to try out all the included mechanics. All the mechanics introduced in the quickstart are intuitive (to me, at least) and none are awkward or clunky. Additionally, it includes a few tables to assist in dungeon building, which is a nice extra.

All in all, I would reccommend this free quickstart to anyone looking to create or convert a single-player-campaign.

I'm running this rule set over AD&D when I play one on one with a friend. Really simple to impliment and very fun.

Nice little introduction. If you're into the genre it's a decent read. I liked it but it won't become a favorite. For me it's a 'dip in' system, and it provides that.