From 2 stars to 5 stars
5/5
On first use I thought it was taking forever to heat up, then I realise that the thermometer icon tends to go on and off periodically. I saw it go off at about 20 minutes and assumed it had taken that long to heat up. On second use I kept an eye on it and discovered it heats up to 180 on 3-D convection in 10 minutes, or 14 minutes if set to 200°. If you don’t want to wait, there is a fast warmup setting.
The alarm is much too brief and also needs to be louder.
Initially the noise when in any of the 3-D convection modes was dreadful (and I would have given the oven 2 stars if that had been normal). Aside from being extremely loud the fan droned and rumbled back-and-forth. I couldn’t be in the kitchen when it was on, and it was pretty loud in the rest of the house. I called out the Bosch engineer who immediately replaced the fan/motor assembly and I now have a beautifully quiet oven. If you feel the fan is too loud then it probably is – don’t try to live with it, they will fix it under the warranty.
The instructions say that the door should be kept closed when cooling down after use, the Bosch man said this is to avoid damage to the control panel. The cooling fan does run for a long time afterwards but that’s how a lot of ovens are now. Lastly, it is a 2.99 kW device and it does not need to be hard wired by a professional, a 13A plug into your cooker circuit is fine.