are there benefits or disadvantages to buying a CARB rated generator?

Hi all I am considering buying a new generator. Has anyone had any expierence with ETQ machines. One of the box stores is going to be runing a sale on one model of this brand. One of my problems is that I never heard of this brand before, and the engine is the same brand . I just don't know whether to take the plunge, although the store has a very fair return policy. I thank you in advance. Sid

I have a Troy Bilt 42" riding mower Model 609 with a manual PTO lever. The PTO control won't engage the blade reliably. When this happened once before, the problem was that the pulleys were work out; replacing them fixed the problem. But this time the pulleys were not worn, The mechanic said the undercarriage is loose; he apparently does not have a favorable opinion of these mowers. He installed a new belt and said he did install a longer bolt, which should fix it for a while. Now it does engage sometimes, but usually does nothing when I engage the PTO. No screeching or blade movement. I can usually get it going by slowing the engine down and moving the deck up and down. This mower has always done a much better job than my other larger mower, and I would like to get it going again. It does a really good job of mulching. Any suggestions? Is it practical to add an additional pulley with an adjustment to compensate for a loose belt?