A solid state drive is much smaller in the total space, but its extremely fast its about 25x faster than the fastest hard drive. You will not experience any load times, from switching on the computer to loading times for games. The actual Solid state drive is the same size as a laptop hard drive (2.5 inch), which means you could use it in a laptop if you wanted too. In my opinion, if you can afford a solid state drive, go for it! The results are extremely impressive. If you want more space than what's offered use a solid state drive as your "C" drive and a normal hard drive as your "D" drive where you keep all your data, and windows and the games you mainly play or programs on your C drive.
Enjoy your day