The most helpful thing about this software is being able to run multiple simulations at once which enables us to make quicker decisions when it comes time for execution dates or even changing our portfolios depending upon market conditions, etc..
If you have limited experience with simulation models then I would suggest getting training from someone who knows how they work before using such tools as simyards offers free webinars that are very well worth attending! It's also really easy to use compared to other similar products out there so if your not sure what type of tool will best suit your needs than try one like this first because their pricing model makes sense in terms of value vs cost per month/year - but don't hesitate just go ahead give these guys some serious consideration cause they're great people too!!