After 1 month of experience, and having gone through a simple OralB, a Chinese one, I decided to try the OralB. I bought the DUO package since it was priced at 199 euros -10 euros promotion (very good), so the review will be for about 90 euros per device. The device is extremely high quality, the screen is good, the modes are OK, my gums did not bleed during use, and the two negatives I find are:
1) During charging, there is no magnet to hold the toothbrush in place, so it is easy for it to fall (another user noted this)
2) With 2 uses a day for about 2.30~3.00 minutes (without Bluetooth), it lasts about 7 days. I expected something better. The truth is that the charging is quite fast, about 3 hours, so OK, not a big deal.
3) At 2 minutes, the toothbrush does NOT turn off (at least I didn't find any such setting), which is probably a mistake, it vibrates 2 times and continues its work. There should be some related setting.

The DUO package also includes a travel case that also charges the toothbrush while traveling, I have no idea about the capacity of the case, but on a trip for example 10 days, it should logically keep you covered.
The replacements are OK, a bit pricey, but again they are quality, maybe there are some compatible ones from China, for now in 2 months when the change happens we'll see.

4 out of 5 for the quality, the power of the motor, -1 for the battery life, try to get a good price because otherwise the price is not easily digestible!

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Update: One of the 2 controllers is acting weird, it probably needs service or battery replacement. While it is fully charged after use.. it shuts off. I put it on the charger and it shows that it still has 45%, 66% or various other percentages depending. Now lately it showed 0% remaining, probably the battery has given out, is it possible to change it yourself? I will take it to service to see if they change the battery or not, generally the other controller has a much better battery and duration, I don't know if it's a general problem..

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update 2: I finally decided and took the controller that was acting weird and they changed it for me without much fuss with a new sealed one, kudos to Oral B's service. The battery on the 2nd controller lasts at least 10 days so I think it deserves a 5/5 star rating