What kind of problems comes with free web hosting?

There are literally thousands of places to get Free web hosting. Maybe we already have one. Are we happy with it? Do we wish we could do away with the advertising we must put up with?

There a number of reasons why we should not use free web hosting. If we only have a personal website for friends or family, than a free website is fine. However, if we are trying to sell a product or attract people to our website.

Free Websites have no guarantee. They may be here today gone tomorrow.
Free websites usually put ads on their website, making our website look like an advertising medium for who knows what product.

Some other problems are:
Nobody is going to remember the long domain name.
A personalized business domain name is much easier to remember.

If a person interested in our service or product, and we have a free website, we are assuming that we are not offering a serious product or service.