My opinion:
If you want waves, go for tunze wavebox. It is a lot quieter. The Vortech on short pulse is super duper noisy.
If you want something that you can have everything in one and love to play with different modes, go for Vortech. Again, be ready to deal with the noise.
If you want just alternating current , go for 6055 with multicontroller. You can have muti directional flow control. Unlike like vortech that has flow in one direction only. And it is , agian i would like to stress, wayyyyyy quieter.
tunze wavebox and tunze 6055 on multicontroller is really the best combo if you ahve a large tank like a 5 footer. For a smaller tank, the wavebox is taking up prime estate and may be unsightly and thus people may choose the vortech.
End of the day, both products are good depending on your needs. However, one very obvious thing will be the level of noise, unless you are prepared to run your vortechs at 60% power or lesser.
2 cents worth.