Tents are a compromise between weight, usable space and price. The usual “pick two” rule applies. For example to get more usable space you need either a geodesic or semi-geodesic type design but these tend to be more expensive.
They are quite a big investment so it’s worth figuring out what’s important to you and often it’s only when you’ve used a tent for a while you see any shortcomings. We’ve a Vango Spirit 200+ which is a sturdy (3kg) tent that’s pretty much bombproof but it’s only one entrance and in humid weather suffers badly from condensation, to the point you’d think the tent was leaking. Hence the comment about the design of the Ionosphere by @Spin.
The Ordos isn’t bad but for a single person it’s a bit heavy – the SMD Lunar Solo mentioned by @Scotroutes and @Metalheart is half the weight for example. The Lunar Solo is quite popular amongst bikepackers as it’s pretty UK weatherproof. Should note that the Lunar Solo is intended for use with a trekking pole so no pole is included so you’d need to budget for that. Stu at Bearbones sells carbon fibre poles in sections as long as you want to aid packing. http://www.bearbonesbikepacking.co.uk/shop/?product=shelter-specific-poles
If you live near one of the Alpkit stores they often have one or more of their tents erected in-store so you might be able to have a look before you buy.
I had a quick look at the Jaran for a two man (well man and wife) tent for bikepacking. In the end we went with a Big Agnes Copper Spur which worked out at nearly 400g lighter (actually it’s lighter than the Ordos 2) and had a bit more headroom that lets me at 1m80 tall sit up without touching the ceiling. The Copper Spur, MSR Hubbas and the Jaran are all very similar two door designs. @PostieRich has a one man Hubba.
Remember that you’ve got to pack and carry the tent on your bike so lighter, less bulky and more packable will help there. Usually it’s the poles that prove problematic, enough that Big Agnes now have a bikepacking version of the Copper Spur that has shorter section poles.
For solo use my preferences, in order, would be: Lunar Solo; one of the MSR/Big Agnes one person tents; Alpkit Ordos.