Consequently, observing how it plays is like watching a mirror of your own play. If it is raising you a lot, perhaps you are folding too much or playing too many weak hands. Vexbot can be a good tool for finding flaws in your own play. It can be an extremely vexing opponent to play, especially when it has a good model of you.
There is a slider which allows you to specify Vexbot's passive/aggressive level. Passive play favors checking/calling and aggressive play favors betting/raising.
A slider is also presented for exploration verses exploitation. Exploitation will have Vexbot favoring to play in ways that have worked against you in the past. Exploration will have Vexbot more often deviate from exploiting what it already knows, so that it can learn and explore new playing styles against you.