Here's an interesting post: https://www.cnczone.com/forums/shopm...machinist.html
Personally, I usually steer away from combo tools because they tend to be mediocre at their tasks whereas dedicated tools are usually better at what they do. Having said that, the convenience of having a part already set to go for these two operations might be very attractive and adequate depending on the needs and for that I think it's a cool idea; especially if it's CNC. Space is a good point too.
I considered this style a few years ago (pre-CNC) but decided to get a lathe and mill as separate tools.