Tried these shoes on and got the size I would typically wear for smart shoes.
I would say when walking I feel the heel is a touch loose but I've not had any issues with blisters or even any discomfort, obviously due to the spikes, walking on hard surfaces feels abit odd but on the course these are superb. There is cushioning on the heel so if you have a issue with blisters on the back of the heel, it should mitigate it as your heel would rub on the soft fabric opposed to the hard leather.
Grip and traction is great, definitely locked in. Another aspect regarding the fit is that they fit me very nicely on the side of my feet but leave a comfortable space in the toe box. When swinging I feel my feet are locked in well and the heel issue mentioned earlier doesn't affect it in the slightest, that's only something I noticed whilst walking.
Styling is great, particularly if you're wearing these with the smart styled golf trousers.
Although they are soft spikes, it looks like they are fairly robust and will last a good amount of time.
100% recommend