I think it's really useful to analyse hands and highlight areas for improvement. It's less applicable to the micros since we have to play an almost entirely exploitative strategy depending on the player pool. But when it comes to playing against the odd decent reg, situations where the odds depict the play etc then I think it's great. Also just to get you thinking about hands in that way and improving your thought processes. It's now an addon for HM2 and a $100 for a year isn't a lot really.

BlackRain79 said it best a little while ago:

"Don't Listen to all of the GTO Fanboys as it Applies to the Micros. GTO (game theory optimal) has become the big fad on poker forums and in some books in the last few years. If you play anywhere at the micros (NL50 or below) you are wasting your time and money by studying this stuff. In order to be effective GTO theory assumes an environment full of solid, well balanced, thinking opponents. This is not the case in literally any micro stakes game on any site in 2014. Exploitative play is still far superior to GTO play at all levels of the micros."

I totally agree Cookie Monster. Blackrain79 is the man when it comes to the micros and GTO is just a waste of time.

It's not really applicable to micros but getting up to small stakes like 1/2 it can be useful against regs. You have to know who you're using it against though. There are still tons of bad players at small stakes playing 90/70 or 60/5 or stuff like that and basically any level you play at it'll give suboptimal advice against those types of players.

I have been playing around with it myself lately, and thought the same things really - it seems quite tight in certain spots, but I thought it did adjust to your play (I'm probably wrong about that) - it advises CB'ing which seems bad in certain spots, like with middle pocket-pairs (88-55) on KJ9ss for example - I do like how it sizes bluffs on the river tho, for max fold-equity, which got me thinking about that topic more

Does anyone use the freezeout function btw? - some of the recommended plays for short-stack HU are plain-weird imho, like flatting A8 @ 15bb, 3x'ing A rag suited and small pocket-pairs @ 10bb, and checking-back middle and bottom-pairs IP in limped-pots etc. (I think it assumes competent opponents, which isn't often the case @ micros, so that could be a factor)

It's not designed for this, as such, but I have been using it as part of my warm-up routines, as it helps you switch into the "poker-zone" and get's your brain working along the right lines.

PS: @ OP: I recognize that avatar - are you the same person that I have spoken to elsewhere, btw?

PPS: I have gotten "Extra-Terrestrial" rating most times I've used it!? - "Nae Chanta", as we say, round these parts (= "No Way")