Nice to see that you also interested in the this little devil. But... there are still 47 pages in this thread!
First, do yourself a favour and read these 47 pages, before asking these questions.. Then you will get an impression what the possibilities are of the Small Bolt...
Still some answers on your questions:
Runtime with stock set up will be arround 5 min. on full throttle with standard setup and 3s 1600's (maybe some more seconds), but it will also depends the condition of your pack, the waterconditions, evt. other competitors in races, your cornering skills, etc.
Cornering is something special with these kind of boats, you have to do it with care, especially cornering arround a parcours (avoiding hitting bouys) like F1 parcours. It takes some skill. If you control that, cornering is fun with the Small Bolt !
These boats are good for e.g. racing in mini hydro competition as in Europe in some countries.