Depends how often you want to use it, for what time stretches, how big a space required, what transport, climate and what season. I had a 5 metre bell tent, best quality I could find, was actually too good for what I required and echoing others sentiment about care and mildew, long term pitching it really is best used on short grass in the summer months, rotate every few days to get sun on all sides. It cost a bomb to get (and badly at that) cleaned and reproofed after being in long grass and near trees,/black airborne tree stuff.
For very occasional use in the UK I’d go for a lightweight bell tent, even a nylon one if you want that style, although will be flimsier in high winds. Sometimes just rigging a big canvas awning in front of a nylon tent will give you that luxury camping feel, a nice shelter that sounds/feels great with either pattering rain or beating sun.
Canvas is great for heavy rain, such a gentle sound, I have trouble sleeping in nylon tents (without earplugs) during downpours . Great compromise if can find is an older Cabanon Vis-a-Vis frame tent, canvas inner and thick polycotton type flysheet. It lived through some absolutely mental storms earlier this year. I found second hand in great condition for less than 200 quid, it really is another league. I like their ‘Pyramide’ also, but is expensive.
De Waard tenten worth looking at, especially if have someone or self in Holland to grab a Marketplaats bargain…they are quality that should last a lifetime if well cared for.