If using just for filling guns might be OK. DON'T try and fill a tank. All of those "Oilless + Waterless" compressors will eventually fail. Seesm most guys get about 20-30hrs of use before problems. From reading the forums the Yeng Hong seems to be your best bet nowadays if you want a heap way to fill a tank. I'm lucky to still have my old Shoebox chugging along.
If you average it out and it takes 2 mins to fill up your gun (Using the number for reference and of course your fill time will depend on cylinder size of gun) you will get 600 -900 fills before problems. If you fill the gun 3 times per week then this is 4-6 years of usage. Is that worth it? You have to decide. If the gun takes 4 mins and you shoot twice as much hthen you are down to a years life. HEAT is the main enemy of these compressors.
Save some money and buy a Yong Heng compressor. There are many airgunners who have them now and lots of info on line. I also fill my scuba tanks with it and, with a couple of mods, expect it will last a long time.