yes it was fast,faster than any mechanical hdd
but if i were you considering the price of the specialised caching ssd's as apposed to the regular ssd's id buy a regular one and stick windows onto it
one like the samsung 830 or 840 128gb ssd would suit you imo,just unplugg your other hdd's plug in the ssd,set to ahci mode in the bios for the sata ports and do a clean install of windows on the ssd,then once done plug back in the hdd and set the ssd as first boot device in the bios and use the 1tb as your storage hdd,you can even leave the old windows install on there just use what you need off the drive ect and re install and games/programs that wont work
thats how i have mine setup i use a 60gb ssd for windows and a big 2tb hdd for my games/music/films/programs ect,you can choose where to install each program if you select custom and point it to the hdd
then if you update the mb in the future you can take advantage of either caching mode or be able to use the full sata3 speeds of the drive,on that board youll see sata2 speeds which are around 250-260mb per second read/write
it will still transform your pc's performance
EDIT: you have to get your head around the fact that you only want windows operating system on the ssd and everything else,games/programs on the mechanical hdd,then space isnt a problem