The Roadster is a pretty awesome amp. Buy one only if you like the Recto distortion though. If you don't, don't buy one.
A lot of people say it is darker -- which is true. That is a bit of a misnomer though, in that you can definitely get some higher midrange sounds out of using the Tweed setting for clean/crunch tones, or by turning up the presence in channel 4 modern (which is more responsive than in any of the other three channels) for a brighter and fizzier modern distortion sound. The darker sounds that are abundant in many of the channels are great for some really good blackface cleans and those overdriven blues tones. The darker tone also helps users get closer to the older two channel Recto tones of the '90s. Overall, the Roadster is a very, very smooth and versatile Rectifier.
Also try a Mark. Those amp are also killer. Different, but equally amazing. Sustain for days and unusually tighter all around. Coming from a Recto, a Mark will seem unnaturally tight. Vice versa and the Recto will seem unusually loose. It should be noted that with a boost, some reverb, and some slight delay the Roadster can get some very fantastic lead tones that are more akin to the Mark series amps. The Mark amps cannot however replicate the attitude and aggression of Recto chunk and gain. If you want that sort of sound, get a Roadster or a Rockerverb. With the v-curve eq setting switched in on the Mark V extreme mode, I was able to get a similar voicing to a Recto amp, but without the big, loose feeling of Recto saturation. If you want some gainy higher midrange (don't mistake this comment for thinking a Mark will sound like a Marshall, it won't) and tighter crunch, then get a Mark amp.
