While not as stable as a tripod, it is a quick and convenient alternative that can prove very useful in decreasing camera shake and also to provide a bit more stability when balancing those cameras with the heavy telescopic lenses. However, if you have decided on a full size unit, your next step is to examine the fine points. This is an important factor to consider if the subjects that you shoot are close to the ground. How easy is it to loosen and move the tripod head to reposition the camera. The more movement you have, the less you will need to reposition the tripod.
Some tripods have rubber tips for indoors and screw-out spikes for outdoor use.
And finally, some tripods can extend one or more legs at odd angles, which is useful when you are working on uneven or sloped ground. Look for established brands. How any of the above refinements will influence your purchase is something only you can decide. Take your time and choose carefully. The right tripod will be a faithful photographic companion that lasts for years.