Vox
On the SCXD you can run a range of reverb and delay at the same time, you can also select Chorus and have delay and reverb at the same time. You can have reverb alone and chorus alone as well plus other effects separately like tremolo and vibrato and delay, all in differnet parameters of speed and depth.
The SCXD is 299 and probably worth the extra fifty dollars because it is "all tube", so called design, but uses a digital amp modeling section and effects section. Has like sixteen amp models that are very good, about at least eight of which are classic Fender amps and includes eight more of British and ultra high gain type models. It uses a regular preamp tube and a big power tube, 6L6 I think. 15 - 20 tube watts of LOUDNESS, depending how the watts are measured.
That little Vox 40+ looks like a neat amp though. On the wattage switch it goes up to 40 watts and then has a zone in red or another color that goes up about 20 degrees more of arc on the knob into quite a bit more watts than 40. It also include autowah as one of the effects, which was left off the new VT standard versions in lieu of something else.
Hope this helps.