You can easily tell from its name, Make RAM Disk is a lightweight Mac application that was designed with the sole purpose of helping you create RAM disks in an instant. This simple piece of software can prove to be quite a useful tool, especially if you are in need of a temporary storage device in order to save some data during your work session.
The RAM disk that you create using this efficient application will automatically delete its contents at system shutdown. Therefore, this small tool can come in handy for the storage of the data you don't want to keep and it won't interfere with the hard drive I/O at all.
Other than that, not much more can be said about the easy-to-use Make RAM Disk. You should keep in mind that there are some situations in which your data can be lost (as the program creates a temporary storage volume) like depleted battery or clicking the "Eject" button by mistake, so, if you have some data you might need at a later time, it is recommended that you copy it to a permanent storage device.
All in all, if you are looking for a simple Mac application that allows you to easily create a RAM disk (temporary storage volume) then you should give the lightweight Make RAM Disk a try.