Yes, Hosted PBX VOIP systems can do wonders for your business image. We have been employing the services of The Real PBX for many years now. Hosted PBX Systems offer a huge number of features. These may include Unified Communication, Auto Attendant, Call waiting, Call Conferencing, IVR, Call Hunt, Do Not Disturb, Call Forwarding and more. It is no doubt highly cost effective as compared to the premise based PBX system.
You can also get a free trial and decide for yourself if the service is actually good or not. How Hosted PBX VOIP can benefit your business is a huge topic. I hope this link will help you in getting some of those reasons.
http://www.therealpbx.com/blog/hosted-pbx/why-hosted-pbx-systems-are-the-best-business-phone-systems