This is a review coming from a person that is in music since 5 years old but didn't deal with professional sound technology until recently.
So I bought this recorder after exhausting research bec Im a pianist and piano is a tough instrument to record. Having seen almost all recorders on the market and I can say confidently that I have not regreted it at all.
Pros:
-The display is mesmerizing , it looks super cool and it makes it super easy to use, especially on the go or under time pressure (I understood it in minutes without having touched any other recorder, depends on the kind of use).
-Amazing features, makes it a powerful and fast multi-tool
-The on board mics have suprising good and detailed quality compared to all previous handheld recorders
-Along with super clean preams, you get something veeeeeery decent out of it, on a fazioli piano it sounded crystal clean. It can support social media content with ease. Of course with post edit you unlock even more potential
-32 bit float is a must for live music recitals, you have your head relaxed for clipping
-Rec and peak red light are essential
-Split recording tool / metronome / tuner / dual recording and others super useful for musicians
-Battery is not as bad as I heard/expected, it's quite reliable. Although i strongly recommend rechargeable batteries
Cons:
-Very sensitive, it definetely needs a case and at this price range is a bummer that a case doesn't come along. I still carry it in the box because in order to protect that huge touch screen you need a specified case.
-Bluetooth adapter is a must and it's embarassing that it isn't sold along. The Tascam app doesn't work with USB cable with smartphone, it needs the app. If you try to record through your smartphone you might get a glitch sound every 2 minutes which makes the recording unuseable (not in all phones though). If you do social media you want it to be recording along with your phone, so it's quite furstrating that you have to pay extra 30 bucks and im not sure if even then you would do that.
-The back button truly doens't exist, you have to long press home button for 2 seconds. Its not the end of the world, but is slightly annoying at times, i would prefer it to be instant.
Pros over X6:
-Once you get the X8 you understand that the screen is as big as it has to be easygoing and fast. I haven't had a X6 but i imagine it wouldn't be as easy to use, especially in tough times.
-Mics come out, so if they break they can be replaced.
-XLRs are a tremendous potential (or not, depending on what you plan your use on). But consider that with XLRs you might be able to rent it at musicians and after some time have some money earned. Although I dont totally recommend it bc as I said it's very sensitive and requires careful attention
-X6 doens't have combo jack recording. My first plan was to record line in and onboard mics together but that was not possible on the X6 and i didn't want to have to use two huge cables for a digital piano
So this was my experience with Tascam Portacapture X8, minding that I've been using it for less than a month. I will update the review if i figure out something else.
But I'll tell you this. You don't simply buy a recorder, you invest in a recording buddy to assist you in your work and in your on-spot creative ideas. So choose wisely and if you are like me and like wonderful projects out of nowhere or that might happen in the middle of nowhere, this is an investment in your art and work.