I installed it only because I got sick of HSBC continually prompting me to do so whenever I logged on. I couldn't really work out what it was doing, and on the few occasions it showed its face, I found it intrusive. So I uninstalled it, and really haven't missed it.
Several of the banks have been offering Rapport to their customers for the last 18 months. A major complaint has been that it can slow your computer down quite dramatically. The bank's reaction to this is that it's possibly worth enduring a slow down because of the extra security. They might also suggest removing your own anti-virus program.
I tried it a year ago, and found it did interfere with the running of my system. After discussions with the bank I eventually removed it.
Rapport is a resource hogger on some machines and I have uninstalled it from several machines. In that process the software actually suggests that by clicking a request button a technician will log into the machine and resolve the issues by reconfiguring the software.
Obviously a known issue which leaves me with no confidence in the bank or the software. The banks can screw up the country`s finances but not my computer!!!
I was offered this from HSBC but after googling for probelms associated with the program I decided not to install it. Provided you take the common precautions regarding phishing, anti virus software etc. and have a good password I reckon you should be OK without it.