I've been using this razor for a few weeks and here is a summary based on a posting I made in another forum:
"Finally got delivered a few before the weekend (I live in HK, so shipping took about 20 days).
Overall, its OK, just OK.
Packaging is nice and the product at first glance looks nice and sleek. I however notice the downside of using plastic straightaway. Getting the blade in does result in some scuffs as you can't obviously place it in precisely unless you are a robot and the plastic is a bit soft.
First shave. Well, took a bit of getting used the the blade angle, wasn't used to that! Took it nice and slow. This is a very very mild shave and extremely forgiving. Also when you do get the angle right, you get some decent audible feedback.
Downside with that, its not so efficient and noticed that there were clumps of hair that hadn't been trimmed after my first pass. But this could also probably be not to being used to the shaving angle.
Second pass was a bit better, started getting used to the angle. Again, very mild shave. I did need a third pass, but even then didn't clean everything up.
So after my first shave I got a decent shave, very mild but did take quite a bit to get there.
I had enough time over the weekend for a three pass shave. However during work days I normally only have time for a two pass shave (WTG, followed by XTG cheekside and ATG chin side). I tried this this morning with the OneBlade Core. First thing I noticed was the blade had deteriorated since my first shave, but the shave remained mild and forgiving. I was getting better with the blade angle though. However a two pass shave just didn't cut it with this razor, it just wasn't getting a close enough shave to what I'm used to after two passes.
So overall, this is an OK razor. It is perfect for beginners trying to get away from cartridge razors, but is it worth it for US$50, no not at all. Taking into account the blade cost I really don't think its worth the ongoing price.
I will probably try to return mine, but am not too sure as it took 20+ days to arrive and not sure if I can meet the 30 day return period (also need to factor in return shipping cost from HK)."
Oneblade have provided an update as to this razor and are tweaking it, as people have found it a bit crap anyway. They are offering free exchanges, but taking into account the shipping costs and shipping times, I may just send it back for a full refund.