There are a lot of search engines out there but not all of them are worth your time and money. If you stumble across a cheap search engine submission service, do not pay for it, no matter how good it sounds.

There are some people who actually do a nice, thorough job though. These are the people that charge an arm and a leg because they know what they're doing and only submit your websites to the best search engines out there.

If you do decide on purchasing these services, make sure you demand a full report at the end of the job.

anybody has to check on the services being offered by the SE submission service, so as not to be fooled by other pay-accepting services

Well it would be wise to check on anything you're willing to pay for. That's just common sense.

but how would an effective checking be possible? got tips??

I don't get what you're trying to ask me. Come again?

how can you check that the paid submission service has really something to give you and not only make fool of the user.

Correspond with them, just ask a lot of questions. You can also check reviews online.

oh yeah and i also think that further testimonials might also help and assist them in furthering the users' trust.

Not only that but positive testimonials will definitely help increase sales.

in this way, people will rely on the submission service. just look for good reviews and positive testimonials so to see that you're getting the best of the price.