I upgraded to the Ergon Standard saddle last summer and noticed a HUGE improvement over the standard Cube saddle that came with the bike. Much much more comfortable over long rides.
I would love to try the new E-Mtb version, but as I just got a new saddle I guess it will have to wait.
After 6 months with the totally rock hard and uncomfortable OEM Cube saddle I bit the bullet and bought the Ergon E-MTB saddle today. The OEM Cube one is manufactured by Selle Royale, probably as cheaply as possible. I tried to think I could break my ass into it, but gave up today.
The LBS measured my sit bones on an Ergon machine. Problem was first go it was 14cm, then the next one was 11.something, so I tried again and it was 11.something so we went with best of 3. I'm 6ft and 98kg, but the 11cm sizing put me into the small/medium size so I went with it.
I didn't really care about the E specific claims. I too sit on the nose of the saddle when climbing steep. If I sit at the back I just wheelie too much. Also, the ramp at the back worries me that it'll hinder getting off the back for downhills.
I just went with Ergon because they have a good reputation, the saddle has a cut out and there were no other Ergon saddles in the shop. I got numb toes and dick after an hour on the old Cube saddle, which didn't have a cut out. Otherwise I was tempted to get a Brooks leather one for pretty much the same price.
I was a bit concerned with the wildly different readings of the machine and also, when I asked the LBS what happens if this saddle is uncomfortable, they just gave the usual Swiss shrug.
I've only tried it quickly around the car park and it felt pretty uncomfortable - softer than the Cube one but it felt narrow and the cut out made it feel sharper, not very comfortable. However, my mind is open and I'll report back later after a longer ride.
Update - went on a two hour ride and the Ergon saddle felt too hard, like other have experienced and also it felt quite narrow, a bad fit. I'll persevere with it for a few days to see if it breaks in and then either take it back to the shop to be told "tough shit", the modus operandum of retailers here in Switzerland or suck it up and buy another saddle from another brand.