I think the RV5 is a great reverb-stomper.
But as with anything digital you have to be careful with them controls...
RV5 can sound a lttle sterile and harsh with tone set past 1 o'clock.
I seldom mix in more effect level than say 10 o'clock. Spring, hall and
room have a rich sound. Sounds great also infront of the amp
IF placed last in the chain. Modulation and spring is not very convincing
though. All in all, you get what you pay for. I bet the T Rex room mate
is another story. To expensive though.