While there are advantages to being a hybrid, there are a number of ways in which your monstrous lower half is a detriment to have. Examples:

• Due to your lower half, you cannot use mounts. You can, however, if you choose, let a medium or smaller character ride on you. In such a situation, you continue to act independently, not as a controlled mount.
• As you lack the lower body of a humanoid, you cannot wear humanoid armour/clothes below the belt (ex: leggings, greaves, boots, shoes, etc.,)
• Many people fear you (because you are a Drider) or may regard you with hostility. Other creatures naturally distrust you, and you have disadvantage on Persuasion and diplomacy checks for creatures/people you are not familiar with. Others may permanetly regard you as an abomination, not matter what you do.
• If you want armour for your lower half, it is two to three times the amount of materials to craft, as well as the time required to make it. It is about that much more expensive is you pay someone to make it for you. That is assumming you find someone willing to even craft it for you.
• You count as one size larger when determining your carrying capacity.
• Because of the thick, chitinous armour on your spider half, you get a +3 bonus to your unarmoured AC.

You can communicate with spiders and spider-like creatures (such as Ettercap, other Drider, and if aplicable: Chitine, Choldrith, Neogi, Retriever, and any other spider-like creatures) as if you were under the effects of the Speak with Animals spell. This is always activated.

You have Darkvision with a range of 120 feet.

You have Advantage on saving throws you make to avoid or end the Charmed condition.

You have proficiency in the Insight, Perception, or Survival skill.

You don’t need to sleep, and magic can’t put you to sleep. You can finish a Long Rest in 4 hours if you spend those hours in a trancelike meditation, during which you retain consciousness.

You can climb difficult surfaces, including along ceilings, without needing to make an ability check. Your climbing speed is 30 feet.

You ignore movement restrictions cased by webs. You also know the location of any other creature in contact with the same web.

Driders generate silk and web like their spider kin, so you have a natural affinity with weaving. You gain proficieny with weaver's tools. You can use your legs as weaver's tools.