I am sorry, I thought I read that you had a 650XL above. I have had my 650XL for 30 years now and I would highly reccomend it in its newest incarnation, the 750XL. I would have a VERY tough time choosing between the 750XL and the X10 right now if I was in the market for a press. The thing with the 750XL is that it is a very well proven design with a huge track record of very happy customers (like me). It sounds like the X10 designer is responsive to his customers and very motivated to make the best press that he can design. The X10 has no track record though.
If you are thinking of upgrading your press I would reccomend that you put a lot of weight into the amount of time it takes to swap calibers on the press. I seriously looked at upgrading to a 1050XL at one point but the swap over time and complexity made the 650XL a clearly better choice for me and I now have about a dozen heads for different cartridges. Other than changing primer size my 650XL has a very fast change over and swapping primer sizes is supposed to be much quicker on the 750XL. My 650XL (hence 750XL too) also has a much bigger selection of shell plates than the X10 does. I load some less common cartridges like 7.62x54R and 30 carbine which the X10 has no plate for.
The new pretty shiny toy (the X10) sure does look nice in the store window though.
There have been other pretty looking new presses in the past, like the Hornaday, several Lee presses and Mark 7 presses, that looked great when they were new but don't seem to stack up to the the Dillon offerings in the long run. I also have no doubts that Dillon will be around for another 30 years.
P.S. I was in a gun store doing a private transfer and had a chance to talk to the store owner as the background check was going through. I noticed he had a 1050XL and a 550XL setup in his back room so I asked him about his opinion of the 1050. He told me that he ONLY loaded 45acp on the 1050XL and it doesn't get much use any more after he stopped competing. He said that he used his 550 frequently and for many different cartridges. Basically the swap over time and complexity made it not worth it to use the 1050XL. I recall him saying something about the cost of heads and shell plates for the 1050XL also being a big consideration.
P.P.S. I choose the powders I use based on how well they measure. Some powders, especially stick powders, do not measure well through any powder measures. For the most part I am very happy with the Dillon powder measures and do load many rifle cartridges. The only reason I have the powder check on my .45acp head is because I own a powder check. None of my other 10+ heads have powder checks. The auto indexing on the 650XL makes it so you have to almost deliberately want to make a double charge or a squib to do so. I have never had either.
-- I have no clue what the Q-Tip powder check system is.