Well, no experience with them.
However, if your A/C isn't cooling properly, there is a good chance it's low on refrigerant.
If it's low on refrigerant ....... it must have a leak.
Do you have the equipment and knowledge to test for leaks? Do you know how to evacuate the system?
If not, there is a good chance you may wreck up the compressor by monkeying around with it.
I'd recommend that you take your car to a shop that knows how to properly check the system and refill with refrigerant.
Bubba says to be sure you have punched the recirc button .....
humfrz
How about a second opinion from @
Ultramaroon ......
