INEEDABID is different and better because they are not charging the contractors/businesses a subscription or a fee just to bid. This is much more attractive for the business members. It is just a better way to get bids from qualified companies that are not paying for bids that never turn into jobs.
Absolutely not! You can do unlimited bid requests.
Yes, they will submit a bid along with information about their business. You can contact them with questions or even request a visit to go over the job with you.
No, you do not have to select any of the companies that bids. We hope that you will, but you are under no obligation whatsoever.
The companies will be reputable, licensed, and trustworthy businesses that do work in your area.