I would like to know is it good to use Google Checkout in website as a primary payment processor or use it with other payment processor.
Definitely not as a primary service. I wouldn't use Paypal as a primary service either. Both make great supplementary payment methods, but I wouldn't rely on either one as a single method.
I doubt if it is wise to have GC as your primary payment processor as it is still not widely used. Paypal is still the leader in this segment and so it would be beneficial to have it as the first choice while keeping GC only as the second option! Regards, RightMan
Yea i agree not a good idea to use Google checkout .. maybe 2co would be a better options as its got more facilities..and after all google checkout is just a cc processor