I did an IR at KORL 4 years ago, things may have changed but these are my recollections.
It was summertime when I was there so afternoons were bumpy, so early flying better - probably less so this time of year, but still likely to be less bumpy in the mornings (or at night).
In my experience ATC is excellent, and if there are any nasty thunderstorms in your path they will 'offer you' a course change 10 or 20 degrees left or right to avoid.
But - also quite busy with KORL, Sanford, Orlando Int. and Kissimmee - when in the area need to be good on altitudes particularly if doing some approaches as some have waypoints 'not above and not below' (as the ILS of one airport is below and the ILS of another above).
Also the Apopka lake area seems to be commonly used for general handling so can be busy over the lake - need to do the traffic calls (which you don't do here) and keep a good look out.
Suggest a night flight around 9pm near to Disney - the fireworks look special from the air (assuming they are still doing them), but if I remember there is a permanent exclusion zone (or whatever they call it) over Disney up to 2,000ft or 3,000ft AGL, so need to be careful not to infringe.
For trips away from Orlando recommend you request flight following.