At 1000fps your max clip was only 17 seconds and everything was manual. F stop focus, ISO etc.. all manual setting. It is by no means a practical camera to shoot everything with. However if you are looking to shoot something stunning and with lasting impact, high speed video is tough to surpassed.
These cameras are not cheap but you can rent them on a per day rate basis.
This clip is of a DOA glow shrimp landing at 1000 fps.
This one is of a Sebile top water Splasher.