The main feature of the product is to support you with service virtualization for various components. However, some peripheral features need vast improvement, namely the reporting and the dashboard areas.

I work very closely with the IBM product management team, and I know that in the next release, they are going to drop in some of these reporting features.

As per my working experience over the last three and half years with RIT/RTVS, I would consider the two following areas of improvement:

1. Reporting: In the recent release of RCPT, the "Usage graph" feature is included, but that still needs improvements in terms of UI and timeline filtering criteria.
2. Implementing custom functions is a bit of a tedious job, as ECMAscript does not support some of the standard JavaScript functions. Also, the Script editor window is not user-friendly .

One of the biggest disappointments for me and my team was dependency on various patches, or so call clients for every single technology. You have to download and install clients for HTTP/ MQ/ JMS or any other type of protocol. Ideally, the tool should come as a complete package having support for all technologies and protocols.

User friendliness: I would rate it somewhere around 5/10 in terms of user-friendliness. It can be simpler to build stubs and middle-ware based test cases compared to the solution given by RTVS.

They need to move it to the cloud. I don't think there is a big challenge out there. The limit, per se, is not there. It is still expensive.