Great question — answering as the UphillTech team:
Unless you plan on eventually getting into winter camping (i.e. snow or very low temps), then you probably don't need a 4-season. The major differentiation factors are typically more waterproof and stronger poles and more durable materials. What sort of tent is quite subjective, depends on your use-case (hiking, camping, backpacking, alpine/climbing etc.) and where in the world you are (e.g. in the Pacific North West of the USA you'll want one with better waterproofing because of high rainfall, whereas in Southern Spain you might want one with better ventilation because it's hot and dry). If you are hiking, weight and volume can also be an important factor. Camping tents tend to be heavier...
Full answer by bob1: https://outdoors.stackexchange.com/a/30443 (CC BY-SA 4.0).
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