@Branka-and-Silvia0
I think if you are mostly hosting short stays, e.g. two nights, in a city where there are plenty of cafes and restaurants nearby, it's really not a necessity and a microwave is enough. I also don't think a stove is necessary for making hot drinks. An electric kettle is a much cheaper investment, requires less cleaning and space. I really don't understand why they are not common in a lot of places, e.g. the USA. In the UK, pretty much everyone has one, but my American guests often comment on it and think it's a novelty. If I didn't need a full kitchen and had a kitchenette set up instead, I think a kettle, toaster, microwave and some sort of coffee maker would be sufficient.
RE the oven, I hardly ever need to clean it. I put a large baking tray on the bottom shelf that catches any oil and spills and there are plenty of trays and silicone baking sheets as well as tin foil for guests to use on the racks, so they don't need constant cleaning either. However, I live here, so that's really different. Some guests forget to put the tray back after they have washed it.
@Jenny
For me, the stove is a must. I have a fully equipped kitchen anyway because it's my home and I'm lucky enough to have a fairly big kitchen. However, even if I didn't live here, a stove is really essential for long term guests, most of whom cook daily. I've only had one long term guest who didn't use the stove. Not all guests use the oven, but most do.
Even when I hosted short term guests, a lot of them did cook and I imagine my kitchen and the fact that they could use it was definitely a key factor in them booking my listings rather than ones where they have no kitchen access. Supermarkets in the UK are pretty well priced compared to some places (and we have a Lidl only a two-minute walk away) but restaurants and cafes in London are expensive! Guests save a lot of money by not eating out all the time.
I also found that some nationalities do not trust the restaurants here, e.g. I've had many guests come to the UK for the first time and literally thought all we ate was fish and chips, when you can find literally ANY type of cuisine in London. I've hosted many Chinese and other Asian guests who do not want to eat foreign food and think that the Asian restaurants in London must be bad. Of course there are some bad ones, but there are also some great ones. I'm originally from Pakistan, but I think our local Indian takeaway is amazing 🙂