Pros
Manage your own time as an independent sales rep. Compensation is 100% commission. However, the expectation is a full time work effort and the quotas are based on previous performance of the territory. If you can't exceed it, you're not a top performer.
Cons
Compete with the company you sell for and 2 others with the same products in the same accounts. The number of accounts in the country is fixed. The opportunity list isn't growing. Assume all costs, cancellation and liability against your commissions. Company consistently fails to make release dates on schedule. No residual income to cover basic costs of living and/or doing business. Finance finds that taking away income from field sales is a great way to boost the bottom line which looks good to shareholders. Regional Managers take 2 days to return your call on average and corporate usually decides not to answer at all unless they started the conversation. Company is very thin skinned. If your customers have a product complaint, they don't want to hear it from you and will be very defensive. Be prepared to prove everything you have to say in writing. The culture is one that depends on email and recorded phone call documentation as a management insurance policy.