There are loads of flatclip pedal options, but it is nice to have something with Ultegra level quality (bearings, build, etc.). SPD are a known quality of excellence. It is nice to have a flat-pedal option for conditions where you don't want to be clipped in (sketchy-for-you downhill sections). Additionally, these make a great option to pop on your commuterpub bike to provide flexible shoe options. )
For me, the flats were extra-valued in allowing easier starts whilst on a step bit of uphill. I have these on my fatbike and climbing in the snow, having to stop but then dropping the seat and getting a smooth start is only possible with flats. ) But for all other trail riding, being used to the security of clipping in, I am glad to then flip the pedal over and snug-up on them.
I used these pedals to replace a pair of generic aluminum cage pedals on a KONA ROVE which is a sturdy bike needing sturdy pedals.and they have reflective strips I have a pair of Shimano PD-A530 which are lighter on a KONA JAKE not as heavy a bike so they match it better but the platform side is not very helpful when it gets wet unless you have SPD shoes you can slip off the pedal, not so with these XT PD-T8000's they have grip and you can add longer studs which come with the pair. I hardly use the SPD shoes so this is fine for me and even if they grab my sandals and or tear up the soles of my shoes it's worth getting grip when you need it!