Console server automation. Any brands to avoid?

Hey All,

I have a project coming up that will require the use of console servers to connect a large number of devices together so that they can be controlled in parallel. Are there any brands that I should avoid? I don't have enough experience beyond some manual use of a perle box to know if any specific brand or brand(s) will be problematic. Any gotchas I should know about?

Thanks in advance :)