I am a power user for Zoho for a number of reasons including following:
Zoho CRM, truly the beast out there. It has a lot of features that I simply can't write down all together.
Zoho SalesIQ it integrates with your websites for real time chat support
Zoho Workdrive, this is a Google Drive alternative except Zoho gives you 5 TBs right of the bat! I use this and share with my team (i.e) drone photographers, VAs, reatlors, partners, etc.
Zoho Forms, I use this to collect info from leads, buyers, etc.
Zoho Desk, this is a ticketing where all inquires go to and since it integrates with Zoho Forms, it creates a ticket within Zoho Desk + New Lead within Zoho.
Zoho Cliq, similar to slack, I communicate with my team with this software.
Zoho Books, I am not using this as my partner uses it integrates nicely with CRM for book keeping and I could provide access to our CPA for Taxes.
Zoho Campaigns, this is to send out emails similar to Constant Contact. I also use the CRMs built in email to send out 8-10k emails spaced out through a couple of days.
Minor drawbacks, it needs a better phone support system, I use a VOIP.that connects with Zoho and could be better. It does have Power dialer and when leads come in, I know it's from that person that integrates with my CRM.
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Drawbacks, it doesn't have a great SMS follow up sequence. This is why I also use REIReply/GHL, if I didn't have amazing automatons within Zoho and I needed another CRM. I would use GHL as a back up. I think the SMS automatons alone for GHL are worth the price of admission. I now have uploaded all my leads from Zoho to GHL for SMS follow ups and I still use Zoho for better CRM support.
Airtable is a great alternative as well, it just isn't a full blown CRM and the price is really cheap for just a solopreneur or small team.